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All Stories by Liz Kruesi
The orientation of light waves from the region around galaxy M87’s central black hole rules out the existence of axions of a certain mass.
A disputed multiple-star system doesn’t have a black hole, as once reported, but is actually a missing piece in binary star evolution.
A Mars rover, an X-ray telescope and several low-Earth satellites are at risk in response to international sanctions on Russia.
A recently found space rock is about one kilometer wide, orbits ahead of Earth around the sun and will stick around for at least 4,000 years.
With the brightest X-ray glow of a new class of exploding stars, cosmic oddity AT2020mrf boosts evidence of these mysterious blasts’ power source.