Astronomers discovered dozens of stellar streams in the Milky Way using Gaia data, offering new clues about galaxy formation ...

"It is fascinating that an active galactic nucleus can change its brightness so dramatically over such a short period of time ...

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A galaxy is a massive, gravitationally bound system. It contains stars, stellar remnants, interstellar gas and dust, and a ...

Even before its full science operations have begun, the Vera C. Rubin Observatory in Chile has already helped astronomers find something remarkable. The observatory's first images, revealed in June, ...

At the heart of our own galaxy, there is a dense thicket of stars with a supermassive black hole at the very center. NASA's Nancy Grace Roman Space Telescope will provide the deepest-ever view of this ...

A galaxy neighbouring ours is transforming in unexpected ways – and it could change our view of space, researchers say. The Small Magellanic Cloud, or SMC, is one of the closest neighbours to our ...