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The Vera C. Rubin Observatory will help astronomers investigate dark matter, continuing the legacy of its pioneering namesake

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theconversation.com – Samantha Thompson, Astronomy Curator, National Air and Space Museum, Smithsonian Institution – 2025-06-24 07:35:00


Everything visible in space, including stars and planets, accounts for only about 15% of the universe’s matter; the rest is dark matter, which is invisible but detectable through its gravitational effects. The Vera C. Rubin Observatory, starting its 10-year mission with the largest digital camera ever built, will capture detailed images of billions of galaxies to study dark matter’s role in the universe’s structure. Vera Rubin’s pioneering work in the 1960s revealed stars in galaxies move faster than visible matter predicts, suggesting unseen mass. Her legacy continues as astronomers use data to explore dark matter’s mysteries.

The Rubin Observatory is scheduled to release its first images in 2025.
RubinObs/NOIRLab/SLAC/NSF/DOE/AURA/B. Quint

Samantha Thompson, Smithsonian Institution

Everything in space – from the Earth and Sun to black holes – accounts for just 15% of all matter in the universe. The rest of the cosmos seems to be made of an invisible material astronomers call dark matter.

Astronomers know dark matter exists because its gravity affects other things, such as light. But understanding what dark matter is remains an active area of research.

With the release of its first images this month, the Vera C. Rubin Observatory has begun a 10-year mission to help unravel the mystery of dark matter. The observatory will continue the legacy of its namesake, a trailblazing astronomer who advanced our understanding of the other 85% of the universe.

As a historian of astronomy, I’ve studied how Vera Rubin’s contributions have shaped astrophysics. The observatory’s name is fitting, given that its data will soon provide scientists with a way to build on her work and shed more light on dark matter.

Wide view of the universe

From its vantage point in the Chilean Andes mountains, the Rubin Observatory will document everything visible in the southern sky. Every three nights, the observatory and its 3,200 megapixel camera will make a record of the sky.

This camera, about the size of a small car, is the largest digital camera ever built. Images will capture an area of the sky roughly 45 times the size of the full Moon. With a big camera with a wide field of view, Rubin will produce about five petabytes of data every year. That’s roughly 5,000 years’ worth of MP3 songs.

After weeks, months and years of observations, astronomers will have a time-lapse record revealing anything that explodes, flashes or moves – such as supernovas, variable stars or asteroids. They’ll also have the largest survey of galaxies ever made. These galactic views are key to investigating dark matter.

Galaxies are the key

Deep field images from the Hubble Space Telescope, the James Webb Space Telescope and others have visually revealed the abundance of galaxies in the universe. These images are taken with a long exposure time to collect the most light, so that even very faint objects show up.

Researchers now know that those galaxies aren’t randomly distributed. Gravity and dark matter pull and guide them into a structure that resembles a spider’s web or a tub of bubbles. The Rubin Observatory will expand upon these previous galactic surveys, increasing the precision of the data and capturing billions more galaxies.

In addition to helping structure galaxies throughout the universe, dark matter also distorts the appearance of galaxies through an effect referred to as gravitational lensing.

Light travels through space in a straight line − unless it gets close to something massive. Gravity bends light’s path, which distorts the way we see it. This gravitational lensing effect provides clues that could help astronomers locate dark matter. The stronger the gravity, the bigger the bend in light’s path.

Many galaxies, represented as bright dots, some blurred, against a dark background.
The white galaxies seen here are bound in a cluster. The gravity from the galaxies and the dark matter bends the light from the more distant galaxies, creating contorted and magnified images of them.
NASA, ESA, CSA and STScI

Discovering dark matter

For centuries, astronomers tracked and measured the motion of planets in the solar system. They found that all the planets followed the path predicted by Newton’s laws of motion, except for Uranus. Astronomers and mathematicians reasoned that if Newton’s laws are true, there must be some missing matter – another massive object – out there tugging on Uranus. From this hypothesis, they discovered Neptune, confirming Newton’s laws.

With the ability to see fainter objects in the 1930s, astronomers began tracking the motions of galaxies.

California Institute of Technology astronomer Fritz Zwicky coined the term dark matter in 1933, after observing galaxies in the Coma Cluster. He calculated the mass of the galaxies based on their speeds, which did not match their mass based on the number of stars he observed.

He suspected that the cluster could contain an invisible, missing matter that kept the galaxies from flying apart. But for several decades he lacked enough observational evidence to support his theory.

A woman adjusting a large piece of equipment.
Vera Rubin operates the Carnegie spectrograph at Kitt Peak National Observatory in Tucson.
Carnegie Institution for Science, CC BY

Enter Vera Rubin

In 1965, Vera Rubin became the first women hired onto the scientific staff at the Carnegie Institution’s Department of Terrestrial Magnetism in Washington, D.C.

She worked with Kent Ford, who had built an extremely sensitive spectrograph and was looking to apply it to a scientific research project. Rubin and Ford used the spectrograph to measure how fast stars orbit around the center of their galaxies.

In the solar system, where most of the mass is within the Sun at the center, the closest planet, Mercury, moves faster than the farthest planet, Neptune.

“We had expected that as stars got farther and farther from the center of their galaxy, they would orbit slower and slower,” Rubin said in 1992.

What they found in galaxies surprised them. Stars far from the galaxy’s center were moving just as fast as stars closer in.

“And that really leads to only two possibilities,” Rubin explained. “Either Newton’s laws don’t hold, and physicists and astronomers are woefully afraid of that … (or) stars are responding to the gravitational field of matter which we don’t see.”

Data piled up as Rubin created plot after plot. Her colleagues didn’t doubt her observations, but the interpretation remained a debate. Many people were reluctant to accept that dark matter was necessary to account for the findings in Rubin’s data.

Rubin continued studying galaxies, measuring how fast stars moved within them. She wasn’t interested in investigating dark matter itself, but she carried on with documenting its effects on the motion of galaxies.

A quarter with a woman looking upwards engraved onto it.
A U.S quarter honors Vera Rubin’s contributions to our understanding of dark matter.
United States Mint, CC BY

Vera Rubin’s legacy

Today, more people are aware of Rubin’s observations and contributions to our understanding of dark matter. In 2019, a congressional bill was introduced to rename the former Large Synoptic Survey Telescope to the Vera C. Rubin Observatory. In June 2025, the U.S. Mint released a quarter featuring Vera Rubin.

Rubin continued to accumulate data about the motions of galaxies throughout her career. Others picked up where she left off and have helped advance dark matter research over the past 50 years.

In the 1970s, physicist James Peebles and astronomers Jeremiah Ostriker and Amos Yahil created computer simulations of individual galaxies. They concluded, similarly to Zwicky, that there was not enough visible matter in galaxies to keep them from flying apart.

They suggested that whatever dark matter is − be it cold stars, black holes or some unknown particle − there could be as much as 10 times the amount of dark matter than ordinary matter in galaxies.

Throughout its 10-year run, the Rubin Observatory should give even more researchers the opportunity to add to our understanding of dark matter.The Conversation

Samantha Thompson, Astronomy Curator, National Air and Space Museum, Smithsonian Institution

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Note: The following A.I. based commentary is not part of the original article, reproduced above, but is offered in the hopes that it will promote greater media literacy and critical thinking, by making any potential bias more visible to the reader –Staff Editor.

Political Bias Rating: Centrist

The content is focused entirely on scientific topics related to astronomy, dark matter, and the legacy of astronomer Vera Rubin without engaging in political rhetoric or ideological framing. Its tone is neutral, educational, and fact-based, presenting information grounded in scientific research and historical context. As such, it does not lean toward any particular political bias but maintains an objective, centrist stance typical of purely scientific communication.

The Conversation

Rural hospitals will be hit hard by Trump’s signature spending package

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theconversation.com – Lauren S. Hughes, State Policy Director, Farley Health Policy Center; Associate Professor of Family Medicine, University of Colorado Anschutz Medical Campus – 2025-07-06 13:38:00


The 2025 federal spending package signed by President Trump cuts Medicaid funding by over $1 trillion across a decade, risking 11.8 million Americans losing health coverage. Rural Americans—nearly 20% of the population—are especially vulnerable, as they rely heavily on Medicaid and face increased work requirements and red tape that will reduce coverage. These cuts will force rural hospitals to reduce services, lay off staff, delay equipment purchases, or close entirely. Despite a $50 billion Rural Health Transformation fund, the amount is insufficient to offset $155 billion in lost federal spending. Hospital closures threaten not only health access but also rural economies and the national economy.

Health policy experts predict that cuts to Medicaid will push more rural hospitals to close.
sneakpeekpic via iStock / Getty Images Plus

Lauren S. Hughes, University of Colorado Anschutz Medical Campus and Kevin J. Bennett, University of South Carolina

The public health provisions in the massive spending package that President Donald Trump signed into law on July 4, 2025, will reduce Medicaid spending by more than US$1 trillion over a decade and result in an estimated 11.8 million people losing health insurance coverage.

As researchers studying rural health and health policy, we anticipate that these reductions in Medicaid spending, along with changes to the Affordable Care Act, will disproportionately affect the 66 million people living in rural America – nearly 1 in 5 Americans.

People who live in rural areas are more likely to have health insurance through Medicaid and are at greater risk of losing that coverage. We expect that the changes brought about by this new law will lead to a rise in unpaid care that hospitals will have to provide. As a result, small, local hospitals will have to make tough decisions that include changing or eliminating services, laying off staff and delaying the purchase of new equipment. Many rural hospitals will have to reduce their services or possibly close their doors altogether.

Hits to rural health

The budget legislation’s biggest effect on rural America comes from changes to the Medicaid program, which represent the largest federal rollback of health insurance coverage in the U.S. to date.

First, the legislation changes how states can finance their share of the Medicaid program by restricting where funds states use to support their Medicaid programs can come from. This bill limits how states can tax and charge fees to hospitals, managed care organizations and other health care providers, and how they can use such taxes and fees in the future to pay higher rates to providers under Medicaid. These limitations will reduce payments to rural hospitals that depend upon Medicaid to keep their doors open.

Rural hospitals play a crucial role in health care access.

Second, by 2027, states must institute work requirements that demand most Medicaid enrollees work 80 hours per month or be in school at least half time. Arkansas’ brief experiment with work requirements in 2018 demonstrates that rather than boost employment, the policy increases bureaucracy, hindering access to health care benefits for eligible people. States will also now be required to verify Medicaid eligibility every six months versus annually. That change also increases the risk people will lose coverage due to extra red tape.

The Congressional Budget Office estimates that work requirements instituted through this legislative package will result in nearly 5 million people losing Medicaid coverage. This will decrease the number of paying patients at rural hospitals and increase the unpaid care hospitals must provide, further damaging their ability to stay open.

Additionally, the bill changes how people qualify for the premium tax credits within the Affordable Care Act Marketplace. The Congressional Budget Office estimates that this change, along with other changes to the ACA such as fewer and shorter enrollment periods and additional requirements for documenting income, will reduce the number of people insured through the ACA Marketplace by about 3 million by 2034. Premium tax credits were expanded during the COVID-19 pandemic, helping millions of Americans obtain coverage who previously struggled to do so. This bill lets these expanded tax credits expire, which with may result in an additional 4.2 million people becoming uninsured.

An insufficient stop-gap

Senators from both sides of the aisle have voiced concerns about the legislative package’s potential effects on the financial stability of rural hospitals and frontier hospitals, which are facilities located in remote areas with fewer than six people per square mile. As a result, the Senate voted to set aside $50 billion over the next five years for a newly created Rural Health Transformation Program.

These funds are to be allocated in two ways. Half will be directly distributed equally to states that submit an application that includes a rural health transformation plan detailing how rural hospitals will improve the delivery and quality of health care. The remainder will be distributed to states in varying amounts through a process that is currently unknown.

While additional funding to support rural health facilities is welcome, how it is distributed and how much is available will be critical. Estimates suggest that rural areas will see a reduction of $155 billion in federal spending over 10 years, with much of that concentrated in 12 states that expanded Medicaid under the Affordable Care Act and have large proportions of rural residents.

That means $50 billion is not enough to offset cuts to Medicaid and other programs that will reduce funds flowing to rural health facilities.

An older bearded white man in a yellow shirt sits on a hospital bed in an exam room
Americans living in rural areas are more likely to be insured through Medicaid than their urban counterparts.
Halfpoint Images/Moment via Getty Images

Accelerating hospital closures

Rural and frontier hospitals have long faced hardship because of their aging infrastructure, older and sicker patient populations, geographic isolation and greater financial and regulatory burdens. Since 2010, 153 rural hospitals have closed their doors permanently or ceased providing inpatient services. This trend is particularly acute in states that have chosen not to expand Medicaid via the Affordable Care Act, many of which have larger percentages of their residents living in rural areas.

According to an analysis by University of North Carolina researchers, as of June 2025 338 hospitals are at risk of reducing vital services, such as skilled nursing facilities; converting to an alternative type of health care facility, such as a rural emergency hospital; or closing altogether.

Maternity care is especially at risk.

Currently more than half of rural hospitals no longer deliver babies. Rural facilities serve fewer patients than those in more densely populated areas. They also have high fixed costs, and because they serve a high percentage of Medicaid patients, they rely on payments from Medicaid, which tends to pay lower rates than commercial insurance. Because of these pressures, these units will continue to close, forcing women to travel farther to give birth, to deliver before going full term and to deliver outside of traditional hospital settings.

And because hospitals in rural areas serve relatively small populations, they lack negotiating power to obtain fair and adequate payment from private health insurers and affordable equipment and supplies from medical companies. Recruiting and retaining needed physicians and other health care workers is expensive, and acquiring capital to renovate, expand or build new facilities is increasingly out of reach.

Finally, given that rural residents are more likely to have Medicaid than their urban counterparts, the legislation’s cuts to Medicaid will disproportionately reduce the rate at which rural providers and health facilities are paid by Medicaid for services they offer. With many rural hospitals already teetering on closure, this will place already financially fragile hospitals on an accelerated path toward demise.

Far-reaching effects

Rural hospitals are not just sources of local health care. They are also vital economic engines.

Hospital closures result in the loss of local access to health care, causing residents to choose between traveling longer distances to see a doctor or forgoing the services they need.

But hospitals in these regions are also major employers that often pay some of the highest wages in their communities. Their closure can drive a decline in the local tax base, limiting funding available for services such as roads and public schools and making it more difficult to attract and retain businesses that small towns depend on. Declines in rural health care undermine local economies.

Furthermore, the country as a whole relies on rural America for the production of food, fuel and other natural resources. In our view, further weakening rural hospitals may affect not just local economies but the health of the whole U.S. economy.The Conversation

Lauren S. Hughes, State Policy Director, Farley Health Policy Center; Associate Professor of Family Medicine, University of Colorado Anschutz Medical Campus and Kevin J. Bennett, Professor of Family and Preventive Medicine, University of South Carolina

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Note: The following A.I. based commentary is not part of the original article, reproduced above, but is offered in the hopes that it will promote greater media literacy and critical thinking, by making any potential bias more visible to the reader –Staff Editor.

Political Bias Rating: Center-Left

This content critically assesses a Republican-backed spending package signed by former President Donald Trump, highlighting its negative impacts on Medicaid and rural healthcare. The detailed discussion of the potential harm to vulnerable populations, emphasis on Medicaid cuts, and skepticism about work requirements align with a Center-Left perspective concerned with social welfare and public health. While it acknowledges bipartisan concern about rural hospital funding, the overall tone and focus on the consequences of policy changes reflect a moderate progressive lean rather than a purely neutral or conservative viewpoint.

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The Conversation

I’m a physician who has looked at hundreds of studies of vaccine safety, and here’s some of what RFK Jr. gets wrong

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theconversation.com – Jake Scott, Clinical Associate Professor of Infectious Diseases, Stanford University – 2025-06-26 07:31:00


Robert F. Kennedy Jr., since becoming Health and Human Services secretary, has made many false claims about vaccines, including exaggerating mandatory shots for children and alleging conflicts of interest among vaccine advisers. In reality, children receive about 30-32 required vaccine doses protecting against 10-12 diseases, far fewer than his claimed 92. Modern vaccines contain far fewer antigens and improved adjuvants, reducing immune burden. Controlled trials, including placebo comparisons, have tested all routine vaccines extensively. U.S. monitoring systems track vaccine safety continuously. Allegations of widespread conflicts of interest among advisers are unfounded, and vaccines have significantly reduced childhood illnesses and deaths.

Public health experts worry that factually inaccurate statements by Robert F. Kennedy Jr. threaten the public’s confidence in vaccines.
Andrew HarnikGetty Images

Jake Scott, Stanford University

In the four months since he began serving as secretary of the Department of Health and Human Services, Robert F. Kennedy Jr. has made many public statements about vaccines that have cast doubt on their safety and on the objectivity of long-standing processes established to evaluate them.

Many of these statements are factually incorrect. For example, in a newscast aired on June 12, 2025, Kennedy told Fox News viewers that 97% of federal vaccine advisers are on the take. In the same interview, he also claimed that children receive 92 mandatory shots. He has also widely claimed that only COVID-19 vaccines, not other vaccines in use by both children and adults, were ever tested against placebos and that “nobody has any idea” how safe routine immunizations are.

As an infectious disease physician who curates an open database of hundreds of controlled vaccine trials involving over 6 million participants, I am intimately familiar with the decades of research on vaccine safety. I believe it is important to correct the record – especially because these statements come from the official who now oversees the agencies charged with protecting Americans’ health.

Do children really receive 92 mandatory shots?

In 1986, the childhood vaccine schedule contained about 11 doses protecting against seven diseases. Today, it includes roughly 50 injections covering 16 diseases. State school entry laws typically require 30 to 32 shots across 10 to 12 diseases. No state mandates COVID-19 vaccination. Where Kennedy’s “92 mandatory shots” figure comes from is unclear, but the actual number is significantly lower.

From a safety standpoint, the more important question is whether today’s schedule with additional vaccines might be too taxing for children’s immune systems. It isn’t, because as vaccine technology improved over the past several decades, the number of antigens in each vaccine dose is much lower than before.

Antigens are the molecules in vaccines that trigger a response from the immune system, training it to identify the specific pathogen. Some vaccines contain a minute amount of aluminum salt that serves as an adjuvant – a helper ingredient that improves the quality and staying power of the immune response, so each dose can protect with less antigen.

Those 11 doses in 1986 delivered more than 3,000 antigens and 1.5 milligrams of aluminum over 18 years. Today’s complete schedule delivers roughly 165 antigens – which is a 95% reduction – and 5-6 milligrams of aluminum in the same time frame. A single smallpox inoculation in 1900 exposed a child to more antigens than today’s complete series.

A black-and-white photo of a doctor in a white coat giving an injection to a boy who is held by a female nurse.
Jonas Salk, the inventor of the polio vaccine, administers a dose to a boy in 1954.
Underwood Archives via Getty Images

Since 1986, the United States has introduced vaccines against Haemophilus influenzae type b, hepatitis A and B, chickenpox, pneumococcal disease, rotavirus and human papillomavirus. Each addition represents a life-saving advance.

The incidence of Haemophilus influenzae type b, a bacterial infection that can cause pneumonia, meningitis and other severe diseases, has dropped by 99% in infants. Pediatric hepatitis infections are down more than 90%, and chickenpox hospitalizations are down about 90%. The Centers for Disease Control and Prevention estimates that vaccinating children born from 1994 to 2023 will avert 508 million illnesses and 1,129,000 premature deaths.

Placebo testing for vaccines

Kennedy has asserted that only COVID-19 vaccines have undergone rigorous safety trials in which they were tested against placebos. This is categorically wrong.

Of the 378 controlled trials in our database, 195 compared volunteers’ response to a vaccine with their response to a placebo. Of those, 159 gave volunteers only a salt water solution or another inert substance. Another 36 gave them just the adjuvant without any viral or bacterial material, as a way to see whether there were side effects from the antigen itself or the injection. Every routine childhood vaccine antigen appears in at least one such study.

The 1954 Salk polio trial, one of the largest clinical trials in medical history, enrolled more than 600,000 children and tested the vaccine by comparing it with a salt water control. Similar trials, which used a substance that has no biological effect as a control, were used to test Haemophilus influenzae type b, pneumococcal, rotavirus, influenza and HPV vaccines.

Once an effective vaccine exists, ethics boards require new versions be compared against that licensed standard because withholding proven protection from children would be unethical.

How unknown is the safety of widely used vaccines?

Kennedy has insisted on multiple occasions that “nobody has any idea” about vaccine safety profiles. Of the 378 trials in our database, the vast majority published detailed safety outcomes.

Beyond trials, the U.S. operates the Vaccine Adverse Event Reporting System, the Vaccine Safety Datalink and the PRISM network to monitor hundreds of millions of doses for rare problems. The Vaccine Adverse Event Reporting System works like an open mailbox where anyone – patients, parents, clinicians – can report a post-shot problem; the Vaccine Safety Datalink analyzes anonymized electronic health records from large health care systems to spot patterns; and PRISM scans billions of insurance claims in near-real time to confirm or rule out rare safety signals.

These systems led health officials to pull the first rotavirus vaccine in 1999 after it was linked to bowel obstruction, and to restrict the Johnson & Johnson COVID-19 vaccine in 2021 after rare clotting events. Few drug classes undergo such continuous surveillance and are subject to such swift corrective action when genuine risks emerge.

The conflicts of interest claim

On June 9, Kennedy took the unprecedented step of dissolving vetted members of the Advisory Committee on Immunization Practices, the expert body that advises the CDC on national vaccine policy. He has claimed repeatedly that the vast majority of serving members of the committee – 97% – had extensive conflicts of interest because of their entanglements with the pharmaceutical industry. Kennedy bases that number on a 2009 federal audit of conflict-of-interest paperwork, but that report looked at 17 CDC advisory committees, not specifically this vaccine committee. And it found no pervasive wrongdoing – 97% of disclosure forms only contained routine paperwork mistakes, such as information in the wrong box or a missing initial, and not hidden financial ties.

Reuters examined data from Open Payments, a government website that discloses health care providers’ relationships with industry, for all 17 voting members of the committee who were dismissed. Six received no more than US$80 from drugmakers over seven years, and four had no payments at all.

The remaining seven members accepted between $4,000 and $55,000 over seven years, mostly for modest consulting or travel. In other words, just 41% of the committee received anything more than pocket change from drugmakers. Committee members must divest vaccine company stock and recuse themselves from votes involving conflicts.

A term without a meaning

Kennedy has warned that vaccines cause “immune deregulation,” a term that has no basis in immunology. Vaccines train the immune system, and the diseases they prevent are the real threats to immune function.

Measles can wipe immune memory, leaving children vulnerable to other infections for years. COVID-19 can trigger multisystem inflammatory syndrome in children. Chronic hepatitis B can cause immune-mediated organ damage. Preventing these conditions protects people from immune system damage.

Today’s vaccine panel doesn’t just prevent infections; it deters doctor visits and thereby reduces unnecessary prescriptions for “just-in-case” antibiotics. It’s one of the rare places in medicine where physicians like me now do more good with less biological burden than we did 40 years ago.

The evidence is clear and publicly available: Vaccines have dramatically reduced childhood illness, disability and death on a historic scale.The Conversation

Jake Scott, Clinical Associate Professor of Infectious Diseases, Stanford University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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The post I’m a physician who has looked at hundreds of studies of vaccine safety, and here’s some of what RFK Jr. gets wrong appeared first on theconversation.com



Note: The following A.I. based commentary is not part of the original article, reproduced above, but is offered in the hopes that it will promote greater media literacy and critical thinking, by making any potential bias more visible to the reader –Staff Editor.

Political Bias Rating: Center-Left

This content presents a science-based and fact-checked critique of Robert F. Kennedy Jr.’s statements on vaccines, emphasizing the importance of established public health measures and vaccine safety. It supports mainstream medical consensus and public health institutions like the CDC, while challenging anti-vaccine rhetoric associated with certain political or ideological positions. The tone is objective but leans toward defending regulatory agencies and vaccine advocacy, which aligns more closely with Center-Left perspectives favoring public health expertise and government intervention in health policy.

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The Conversation

Cyberattacks shake voters’ trust in elections, regardless of party

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theconversation.com – Ryan Shandler, Professor of Cybersecurity and International Relations, Georgia Institute of Technology – 2025-06-27 07:29:00


American democracy faces a crisis of trust, with nearly half of Americans doubting election fairness. This mistrust stems not only from polarization and misinformation but also from unease about the digital infrastructure behind voting. While over 95% of ballots are now counted electronically, this complexity fuels skepticism, especially amid foreign disinformation campaigns that amplify doubts about election security. A study during the 2024 election showed that exposure to cyberattack reports, even unrelated to elections, significantly undermines voter confidence, particularly among those using digital voting machines. To protect democracy, it’s vital to pair secure technology with public education and treat trust as a national asset.

An election worker installs a touchscreen voting machine.
Ethan Miller/Getty Images

Ryan Shandler, Georgia Institute of Technology; Anthony J. DeMattee, Emory University, and Bruce Schneier, Harvard Kennedy School

American democracy runs on trust, and that trust is cracking.

Nearly half of Americans, both Democrats and Republicans, question whether elections are conducted fairly. Some voters accept election results only when their side wins. The problem isn’t just political polarization – it’s a creeping erosion of trust in the machinery of democracy itself.

Commentators blame ideological tribalism, misinformation campaigns and partisan echo chambers for this crisis of trust. But these explanations miss a critical piece of the puzzle: a growing unease with the digital infrastructure that now underpins nearly every aspect of how Americans vote.

The digital transformation of American elections has been swift and sweeping. Just two decades ago, most people voted using mechanical levers or punch cards. Today, over 95% of ballots are counted electronically. Digital systems have replaced poll books, taken over voter identity verification processes and are integrated into registration, counting, auditing and voting systems.

This technological leap has made voting more accessible and efficient, and sometimes more secure. But these new systems are also more complex. And that complexity plays into the hands of those looking to undermine democracy.

In recent years, authoritarian regimes have refined a chillingly effective strategy to chip away at Americans’ faith in democracy by relentlessly sowing doubt about the tools U.S. states use to conduct elections. It’s a sustained campaign to fracture civic faith and make Americans believe that democracy is rigged, especially when their side loses.

This is not cyberwar in the traditional sense. There’s no evidence that anyone has managed to break into voting machines and alter votes. But cyberattacks on election systems don’t need to succeed to have an effect. Even a single failed intrusion, magnified by sensational headlines and political echo chambers, is enough to shake public trust. By feeding into existing anxiety about the complexity and opacity of digital systems, adversaries create fertile ground for disinformation and conspiracy theories.

Just before the 2024 presidential election, Director of the Cybersecurity and Infrastructure Security Agency Jen Easterly explains how foreign influence campaigns erode trust in U.S. elections.

Testing cyber fears

To test this dynamic, we launched a study to uncover precisely how cyberattacks corroded trust in the vote during the 2024 U.S. presidential race. We surveyed more than 3,000 voters before and after election day, testing them using a series of fictional but highly realistic breaking news reports depicting cyberattacks against critical infrastructure. We randomly assigned participants to watch different types of news reports: some depicting cyberattacks on election systems, others on unrelated infrastructure such as the power grid, and a third, neutral control group.

The results, which are under peer review, were both striking and sobering. Mere exposure to reports of cyberattacks undermined trust in the electoral process – regardless of partisanship. Voters who supported the losing candidate experienced the greatest drop in trust, with two-thirds of Democratic voters showing heightened skepticism toward the election results.

But winners too showed diminished confidence. Even though most Republican voters, buoyed by their victory, accepted the overall security of the election, the majority of those who viewed news reports about cyberattacks remained suspicious.

The attacks didn’t even have to be related to the election. Even cyberattacks against critical infrastructure such as utilities had spillover effects. Voters seemed to extrapolate: “If the power grid can be hacked, why should I believe that voting machines are secure?”

Strikingly, voters who used digital machines to cast their ballots were the most rattled. For this group of people, belief in the accuracy of the vote count fell by nearly twice as much as that of voters who cast their ballots by mail and who didn’t use any technology. Their firsthand experience with the sorts of systems being portrayed as vulnerable personalized the threat.

It’s not hard to see why. When you’ve just used a touchscreen to vote, and then you see a news report about a digital system being breached, the leap in logic isn’t far.

Our data suggests that in a digital society, perceptions of trust – and distrust – are fluid, contagious and easily activated. The cyber domain isn’t just about networks and code. It’s also about emotions: fear, vulnerability and uncertainty.

Firewall of trust

Does this mean we should scrap electronic voting machines? Not necessarily.

Every election system, digital or analog, has flaws. And in many respects, today’s high-tech systems have solved the problems of the past with voter-verifiable paper ballots. Modern voting machines reduce human error, increase accessibility and speed up the vote count. No one misses the hanging chads of 2000.

But technology, no matter how advanced, cannot instill legitimacy on its own. It must be paired with something harder to code: public trust. In an environment where foreign adversaries amplify every flaw, cyberattacks can trigger spirals of suspicion. It is no longer enough for elections to be secure − voters must also perceive them to be secure.

That’s why public education surrounding elections is now as vital to election security as firewalls and encrypted networks. It’s vital that voters understand how elections are run, how they’re protected and how failures are caught and corrected. Election officials, civil society groups and researchers can teach how audits work, host open-source verification demonstrations and ensure that high-tech electoral processes are comprehensible to voters.

We believe this is an essential investment in democratic resilience. But it needs to be proactive, not reactive. By the time the doubt takes hold, it’s already too late.

Just as crucially, we are convinced that it’s time to rethink the very nature of cyber threats. People often imagine them in military terms. But that framework misses the true power of these threats. The danger of cyberattacks is not only that they can destroy infrastructure or steal classified secrets, but that they chip away at societal cohesion, sow anxiety and fray citizens’ confidence in democratic institutions. These attacks erode the very idea of truth itself by making people doubt that anything can be trusted.

If trust is the target, then we believe that elected officials should start to treat trust as a national asset: something to be built, renewed and defended. Because in the end, elections aren’t just about votes being counted – they’re about people believing that those votes count.

And in that belief lies the true firewall of democracy.The Conversation

Ryan Shandler, Professor of Cybersecurity and International Relations, Georgia Institute of Technology; Anthony J. DeMattee, Data Scientist and Adjunct Instructor, Emory University, and Bruce Schneier, Adjunct Lecturer in Public Policy, Harvard Kennedy School

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Note: The following A.I. based commentary is not part of the original article, reproduced above, but is offered in the hopes that it will promote greater media literacy and critical thinking, by making any potential bias more visible to the reader –Staff Editor.

Political Bias Rating: Centrist

This article presents a balanced and fact-focused analysis of trust issues surrounding American elections, emphasizing concerns shared across the political spectrum. It highlights the complexity of digital voting infrastructure and the external threats posed by misinformation and foreign influence without promoting partisan viewpoints. The tone is neutral, grounded in data and research, avoiding ideological framing or advocacy. The piece calls for bipartisan solutions like public education and institutional trust-building, reflecting a centrist perspective that prioritizes democratic resilience over partisan blame.

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