In late November 2025, astronomers captured an unprecedented cosmic signature: the first X-ray emissions ever detected from ...
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400,000 km halo appears around 3I/ATLAS—first X-ray signal ever detected 'difficult to explain'
For eight months, the comet now called 3I/ATLAS traveled unseen through deep space. In July 2025, the NASA-funded ATLAS telescope in Chile finally spotted it as it entered our solar system. This icy ...
When you buy through links on our articles, Future and its syndication partners may earn a commission. The first X-ray taken of a human in space was captured during SpaceX's private Fram2 mission. The ...
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