SUMMARY: Workers at South Carolina’s Savannah River Site, a former nuclear bomb parts facility, found a wasp nest with radiation levels 10 times above federal limits near liquid nuclear waste tanks. The nest was removed and treated as radioactive waste, with no wasps found. Officials say no tank leaks were detected, suggesting the nest absorbed residual onsite contamination. However, watchdog group Savannah River Site Watch criticized the report for lacking details on contamination sources and leak possibilities. The site, now focused on nuclear fuel and cleanup, still holds 43 active underground waste tanks, down from its Cold War-era peak of producing plutonium bomb cores.

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SUMMARY: Investigators revealed that the Army Black Hawk helicopter involved in the January midair collision over Washington was flying higher than allowed, with inaccurate altimeter readings showing it 80 to 100 feet lower than actual altitude. The helicopter’s outdated altimeter technology contrasted with newer, more accurate systems. The FAA had ignored 85 prior near misses at Reagan National Airport, and Army helicopters often flew with ADS-B Out equipment off, limiting tracking. Legislation proposed by Sen. Ted Cruz aims to mandate comprehensive ADS-B use for all aircraft, including military. Hearings continue to examine airspace safety, military routes, and air traffic control challenges.

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SUMMARY: Katie Ledecky reaffirmed her dominance in the 1,500-meter freestyle at the World Swimming Championships in Singapore, winning gold with a time of 15:26.44. Italy’s Simona Quadarella set a European record to take silver, while Australia’s Lani Pallister earned bronze. Ledecky now holds 25 of the 26 fastest times ever in the event and secured her 22nd world championship gold. The U.S. team, despite battling gastroenteritis, won one gold and three silvers. Other highlights included David Popovici’s 200 freestyle win, Kaylee McKeown’s close 100 backstroke victory over Regan Smith, and Germany’s Anna Elendt triumphing in the 100 breaststroke.

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