Hints of impossibly bright, massive objects in the infant universe have forced astronomers to rethink how the first cosmic ...

The Hubble Space Telescope has captured a spectacular new image of the largest and most unusual protoplanetary disk ever ...

For a generation, cosmologists have treated dark energy as a fixed backdrop, a steady pressure stretching space faster and ...

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

A newly discovered celestial object may be a starless cloud that could change how astronomers understand dark matter.

A NASA team using the Hubble Space Telescope found an object in space never recorded before, nicknamed “Cloud-9." ...

After a string of dramatic failures, the huge Starship rocket from SpaceX had a fully successful test on Oct. 13, 2025. A ...

NASA’s Hubble Space Telescope has spotted an object unlike any previously observed, revealing an unusual remnant of the ...

Dark energy may be the most mysterious substance ever proposed, but many scientists are certain it exists. Why?

Scientists have discovered an enormous stream of super-hot gas erupting from a nearby galaxy, driven by a powerful black hole ...

A new NASA spacecraft called Pandora is awaiting launch ahead of its journey to study the atmospheres of exoplanets, or ...

The X-Ray Imaging and Spectroscopy Mission (XRISM), a joint mission between the Japanese Aerospace Exploration Agency (JAXA) ...