Our best models of the cosmos don't add up — but that could change if the universe is actually made of a viscous 'fluid,' a ...

The coldest and densest molecular gas clouds in the interstellar medium can have temperatures of 10 K (-505 °F/-263 °C), ...

"The knowledge of these will ultimately help us understand the formation of the first stars and planets and how our own Milky ...

NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into ...

Imagine staring into a hall of mirrors at a Sheesh Mahal, where every reflection bounces endlessly, making it hard to tell ...

Astronomers used the James Webb Space Telescope and gravitational lensing to observe SN Eos, an ordinary supernova from the ...

Known as dinosaur stars for both their primeval nature and their immense size, Population III stars existed only when the ...

Astronomers realized that a strange cloud of gas was actually a relic of the ancient universe which might help solve some of ...

Cosmologists are quietly confronting a possibility that would have sounded absurd a generation ago: the standard picture of a ...

An international team of astronomers has achieved a first in probing the early universe, using the James Webb Space Telescope (JWST), detecting a supernova—the explosive death of a massive star—at an ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...