Firefly Sparkle,” a galaxy that existed about 600 million years after the big bang, has been imaged by the James Webb Space ...

After more than a decade mapping out our home galaxy, the Gaia space telescope was powered down and sent into "retirement ...

Learn about a new observation of a galaxy emitting ultraviolet light that broke through the early universe's dense fog.

Europe's Gaia space telescope was powered down and sent into "retirement" on after a decade revealing the secrets of the ...

Unexpected, Bright Hydrogen Emission Caught Astronomers by Surprise In the early universe, space was filled with a dense fog of neutral hydrogen gas. Although the first stars and galaxies gave off ...

Scientists using the James Webb Space Telescope have identified an ancient and faraway galaxy that provides evidence that an ...

Originally named Global Astrometric Interferometer for Astrophysics, Gaia was conceived with the aim of mapping the cosmos, ...

The final messages sent to Gaia will continue to be carried out into space as the observatory sleeps, and as data from it ...

After more than a decade of mapping the stars, the European spacecraft was shut down on Thursday. But its legacy lives on.

NGC 4536 is a starburst galaxy with rapid star formation due to gas compression. Its bar-like structure channels gas toward ...

Astronomers have uncovered a spiral galaxy nearly a billion light-years away that hosts a supermassive black hole launching ...

Believe it or not, we've seen a few optical illusions in space over the year. Well, we haven't seen them – the Hubble ...