Rare ultra-faint dwarf galaxies beyond the influence of other galaxies show evidence that star formation was stifled long ago ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

On December 25, 2021, the largest and most powerful space telescope, the James Webb Space Telescope, was launched into space ...

A "cosmic CT scan" performed by scientists using two very different cosmic surveys has revealed the cosmos is less clumpy and ...

"Our measurements imply that the supermassive black hole mass is 10% of the stellar mass in the galaxies we studied." ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Researchers studied how the universe’s structure changed over time. They found that the universe is less clumpy than expected ...

A new study suggests that the explosive deaths of the universe's earliest stars created surprising quantities of water that ...

"The Hubble tension is now a Hubble crisis." The mystery of the Hubble tension has deepened with the startling finding that ...

Astronomers compile a large sample of an unusual class of objects in an effort to connect the dots to the early universe.

Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...