Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old as time itself.

Scientists have discovered a mysterious hole on the surface of Mars, and they have no idea what lies inside it. This pit, ...

Deep Space Nine’s opening episode, Sisko's speech encapsulates Starfleet's pursuit of knowledge more so than any other in the ...

They're called ghost particles for a reason. They're everywhere—trillions of them constantly stream through everything: our ...

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

A test model of the Perseverance rover, designed to explore the surface of Mars, sits in a garage at NASA’s Jet Propulsion ...

Over its planned two-year mission, the $488 million telescope will scan the entire night sky every six months and collect ...

The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into ...

Scientists have identified a strange cosmic relic called Cloud-9 — a starless, gas-filled object dominated by dark matter.

Astronomers analyzing data from NSF–DOE Vera C. Rubin Observatory, jointly funded by the U.S. National Science Foundation and ...