We thought we understood planets, but the planetary disk chemistry of far-away XUE 10 is completely changing our conception ...

The race is on to harness the near-infinite power of nuclear fusion—by building a star on Earth. And scientists are closer ...

New observations from the James Webb Space Telescope hint that the universe’s first stars might not have been ordinary fusion ...

An international research team has discovered a luminous galaxy hiding behind a quasar, revealing new insights into how galaxies can remain undetected even in well-studied regions of the cosmos.

Not all stars are created equally. Astronomers believe that the first stars to form after the Big Bang were mostly made of ...

The early universe was already warm before reionization, revealing that the first stars did not flicker on in an icy cosmos.

The writer Tristan Gooley describes how a pair of familiar constellations can help a person navigate in darkness when other ...

Astronomers on Thursday released time-lapse movies dramatizing the fiery behavior of two young star systems, observations that could shed light on the genesis of our solar system. The nearby stars, ...

This quiz will take you on a journey through the life cycle of stars, their classification, and the incredible processes that power them. Stars are the glittering beacons of the universe — massive ...

Why it's so special: Stars in the Milky Way galaxy are born in huge molecular clouds. The most massive is Sagittarius B2, which is just a few hundred light-years from our the galaxy's central black ...

When Sierra Space won a contract to deliver cargo to the International Space Station nearly a decade ago, the company promised a first for the commercial space market: a privately built, rapid reuse ...

A mysterious comet flying through our solar system may be doing more than just passing by—it could help explain how giant planets like Jupiter are born. At a major planetary science conference in ...