Exoplanet TOI 1227 b is being bombarded by x-rays from its host red dwarf star, causing it to “shrink from the size of ...
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'Difficult to explain'—3I/ATLAS emits X-rays for first time in history after 400,000-km halo appears
Japan’s XRISM mission reported a faint X-ray halo around interstellar comet 3I/ATLAS in November 2025, highlighting ...
Using NASA’s IXPE, astronomers captured an unprecedented view of a white dwarf star actively feeding on material from a companion. The data revealed giant columns of ultra-hot gas shaped by the star’s ...
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