The Atacama Cosmology Telescope in Chile has released its final batch of data after 15 years — and it proves that the Hubble ...

NASA’s decision to shut down a $1 billion infrared space telescope, even as it continued to send back spectacular images, was ...

Our universe is filled with galaxies, in all directions as far as our instruments can see. Some researchers estimate that ...

NASA's Nancy Grace Roman Space Telescope team has released detailed plans for a major survey that will reveal our home galaxy ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

An ultra-hot rocky exoplanet may be wrapped in a dense atmosphere, defying expectations about what small planets can sustain.

Astronomers usually detect black holes by looking for X-rays. When gas and dust fall toward a black hole, they heat up and ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

With construction complete, the telescope will now move into final testing. Following testing, Roman will be packaged and ...

Webb’s latest observations reveal a hellish world cloaked in an unexpected atmosphere: TOI-561 b, an ultra-hot rocky planet ...

Virgil is the reddest Little Red Dot discovered so far, and its hidden black hole may offer a clue to the fate of this ...

Every week, Space.com delivers the latest discoveries, launches, and cosmic curiosities from across the universe. From ...