Astronomers discover a quasar 12 billion light-years away with a water reservoir 140 trillion times larger than Earth's ...

Twenty years ago today a magnetar’s epic tantrum made our planet ring like a bell from tens of thousands of light-years away ...

For millions of years following the Big Bang, after the universe’s roiling soup of particles had cooled, the cosmos was a ...

Confirming a long-held theoretical prediction, a survey of 26,000 white dwarfs found that the hotter they are, the more ...

Stars are born in stellar nurseries, molecular clouds of cold gas and dust. These clouds contain many times the mass of a ...

Telescope examines atmospheres of exoplanets, searches for signs of life, focuses on universe's 1st stars, galaxies, objects ...

A new effort to map the rumblings in spacetime caused by enormous black hole collisions paints a surprisingly loud and ...

Galaxies in the early universe tend to be clumpy, but the new JWST discovery of a "grand design" spiral galaxy just 1.5 ...

A giant “hiccuping” star has been documented for the first time in the final stages of its life before exploding. The rare ...

This vast reservoir resides near a supermassive black hole, approximately 20 billion times more massive than our sun.