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10 Mar 2026, 15:40 GMT By Lee Mohon

A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy buried in a huge stream of gas. Astronomers have never seen this type of explosive event in an environment like this before — and it may help solve two outstanding cosmic mysteries. A paper describing these results

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NASA Discovers Crash of Extreme Stars in Unexpected Site
25 Feb 2026, 17:26 GMT By Lee Mohon

In late February, people in the Northern Hemisphere can look up for a special sight: six planets will all be visible from clear and dark night skies. New sonifications from NASA’s Chandra X-ray Observatory released Feb. 25 will help commemorate this latest “planetary parade.” Because the planets in our solar system travel around the Sun

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23 Feb 2026, 20:07 GMT By Lee Mohon

For the first time, a much younger version of the Sun has been caught red-handed blowing bubbles in the galaxy, by astronomers using NASA’s Chandra X-ray Observatory. The bubble – called an “astrosphere” – completely surrounds the juvenile star. Winds from the star’s surface are blowing up the bubble and filling it with hot gas

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Young ‘Sun’ Caught Blowing Bubbles by NASA’s Chandra
28 Jan 2026, 16:38 GMT By Lee Mohon

A new discovery captures the cosmic moment when a galaxy cluster – among the largest structures in the universe – started to assemble only about a billion years after the big bang, one or two billion years earlier than previously thought. This result, made using NASA’s Chandra X-ray Observatory and James Webb Space Telescope, will

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NASA Telescopes Spot Surprisingly Mature Cluster in Early Universe