For years, the James Webb Space Telescope has been spotting enormous black holes in the early universe that defy all ...

Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing ...

The Dark Energy Survey Collaboration collected information on hundreds of millions of galaxies across the universe using the ...

From planet-scorching stellar outbursts to cataclysms so powerful they shiver the very fabric of spacetime, these are some of the biggest blasts our cosmos has to offer ...

For forty years, the “Standard Model” assumed dark matter must be cold. If it moved too fast (which would have made it hot), ...

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

An extremely early Type II supernova explosion, named after the Titan goddess of dawn in Greek mythology, occurred just 1 ...

After the Big Bang, the Universe entered a long, dark period before the first stars formed. During this era, hydrogen emitted a faint radio signal that still echoes today. New simulations show this ...

At 3.3 billion light-years across, the ring may challenge the “cosmological principle” that the universe looks uniform at sufficiently large scales.

Scientists at the Dark Energy Survey have published their most detailed explanation yet of how the universe has expanded over the last six billion ...

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