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The Mysterious Black Fungus From Chernobyl That May Eat Radiation

3 months 2 weeks ago
Black fungus found growing inside Chernobyl's destroyed reactor may be feeding on radiation, and researchers have tested samples of the same species aboard the International Space Station to explore whether it could eventually shield astronauts from cosmic rays. Ukrainian scientist Nelli Zhdanova first discovered the melanin-rich mould colonizing the walls and ceilings of the exploded reactor building during a May 1997 survey. Her research indicated that the fungal hyphae were actually growing toward sources of ionizing radiation rather than merely tolerating it. In 2007, nuclear scientist Ekaterina Dadachova at the Albert Einstein College of Medicine found that melanised fungi grew 10% faster when exposed to radioactive caesium compared to control samples, leading her to propose "radiosynthesis" -- a process where organisms convert radiation into metabolic energy. The same strain, Cladosporium sphaerospermum, traveled to the ISS in December 2018 and grew an average of 1.21 times faster over 26 days compared to Earth-based controls. Nils Averesch, a biochemist at the University of Florida and co-author of that study, remains cautious about attributing the growth boost to radiation harvesting since zero gravity could also be responsible.

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Airbus Issues Major A320 Recall, Threatening Global Flight Disruption

3 months 2 weeks ago
Europe's Airbus said on Friday it was ordering immediate repairs to 6,000 of its widely used A320 family of jets in a sweeping recall affecting more than half the global fleet, threatening upheaval during the busiest travel weekend of the year in the United States and disruption worldwide. From a report: The setback appears to be among the largest recalls affecting Airbus in its 55-year history and comes weeks after the A320 overtook the Boeing 737 as the most-delivered model. At the time Airbus issued its bulletin to the plane's more than 350 operators, some 3,000 A320-family jets were in the air. The fix mainly involves reverting to earlier software and is relatively simple, but must be carried out before the planes can fly again, other than repositioning to repair centres, according to the bulletin to airlines seen by Reuters. Airlines from the United States to South America, Europe, India and New Zealand warned the repairs could potentially cause flight delays or cancellations.

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