A faint, ancient star sitting inside one of the smallest known galaxies has handed astronomers a direct chemical record of ...

Found in an ultrafaint dwarf galaxy, the ancient star’s unusual chemistry indicates it formed from gas enriched by a single ...

Astronomers have detected the earliest known chemical signatures of planet formation in a disk of gas and dust surrounding ...

The JWST has detected more active black holes than expected, casting doubt on their prevalence in the early universe.