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 ...

Ancient star PicII-503 discovered in distant dwarf galaxy Star has extremely low iron, revealing early cosmic chemistry ...

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