A sudden black hole flare unleashed stunning, near light speed winds that echo the Sun’s most powerful eruptions.

Supernovae aren't one of the JWST's main science themes, but the perceptive telescope is full of surprises. Recently, it ...

Allen Telescope Array campaign shows slow changes in radio scintillation that can nudge pulsar timing by billionths of a second ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

NASA scientists are sounding an alarm that would have been unthinkable a decade ago: the same commercial satellite ...

A faint, ancient flash of light detected by the James Webb Space Telescope (JWST) has broken the record for the most distant ...

Data from the James Webb Space Telescope has identified the universe’s most ancient supernova to date. This milestone not only redefines astronomical records but clarifies how the universe’s first ...

Before 3I/ATLAS, the only other confirmed interstellar tourists we've seen were the now-famous, cigar-shaped 'Oumuamua' in ...

NASA’s Webb Telescope detects the earliest known supernova, GRB 250314A, 730 million years after the Big Bang, capturing its host galaxy and providing unprecedented early-universe observations.

A faint, tiny flash of red light glimpsed at the Cosmic Dawn more than 13 billion years ago has smashed the record for the ...

X-ray space telescopes caught a supermassive blackhole flinging matter into space at a fifth of the speed of light ...

"This observation also demonstrates that we can use Webb to find individual stars when the universe was only 5% of its ...