The 13th day of the 18th annual Space Telescope Advent Calendar features part of a dense cluster of galaxies—a wide variety ...

NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera) has captured a stunning view of supernova remnant ...

The James Webb Space Telescope's Near-Infrared Camera (NIRCam) has captured stunning views of Herbig Haro object 797 (HH 797) ...

Researchers employing the James Webb Space Telescope and Canada's NIRISS instrument have observed exoplanet WASP-121b getting ...

Located 12 billion light years away, the Alaknanda galaxy looks strikingly like the Milky Way. Its orderly spiral structure ...

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

Scientists propose that dark matter may have powered the universe's first stars, illuminating the cosmic dawn before nuclear fusion began.

BASED on findings published in Astronomy & Astrophysics in December and further reported by Keith Cooper for Space.com, ...

Scientists suggest that the dark matter may have powered the universe’s first stars. This allows them to shine before nuclear ...

The interstellar comet 3I/ATLAS is racing away from the sun. Hubble and JWST track the object's strange composition: high CO2 ...

An exponential increase in the number of satellites placed in low-Earth orbit has brought advances in telecommunications ...

I/ATLAS is set to make its closest approach to Earth, sparking new theories of alien origins due to the latest observed ...