If not in visible stars and galaxies, the most likely hiding place for the matter is in the dark space between galaxies.

The James Webb Space Telescope isn’t just taking pictures — it’s time-traveling with light. In this video, we follow its ...

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

Orbiting observatories were supposed to escape the glow and clutter that plague ground-based astronomy, but the next ...

Scientists discovered ribose — in addition to “all five nucleobases used to construct both DNA and RNA” — on asteroid Bennu, ...

Satellite megaconstellations are increasingly impacting astronomical observations. Bright satellite streaks are compromising ...

NASA revealed that scientists discovered sugars that are “essential” to life and a “gum-like” substance on the space rock ...

Researchers have discovered a large, orderly spiral galaxy that formed soon after the Big Bang, when space was only about 1.5 ...

Scientists have uncovered a massive rotating structure in deep space, a 50-million-light-year cosmic filament where 14 ...

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

ENGRAVE, led by Oxford professor Stephen Smartt, wins top European research award for revealing how gold, platinum and heavy ...

The final integration of the telescope's major observatory components took place on Nov. 25 inside NASA's Goddard Space ...