They found a repeating pattern: a few hundred seconds of dim X-ray light, followed by a similar period of bright light.

The object, named NGC 6099 HLX-1, first appeared in 2009. Chandra caught the bright X-ray flash near the galaxy’s outskirts.

The study, which was published in Monthly Notices of the Royal Astronomical Society earlier this year, claims that our universe may exist inside a black hole.

Nearly a month ago, a mysterious object was seen hurtling through the solar system and later confirmed as an interstellar ...

Top American astronomers are hunting for clues about a 48-foot-wide scope that Beijing isn’t talking about.

Webb has been orbiting more than a million miles from Earth, capturing breathtaking images of deep space. But how does it ...

Pazmino’s Cluster, or Stock 23, is a small open cluster in Camelopardalis that shines as a hidden gem for binoculars and ...

Captured in infrared light by the James Webb Space Telescope, the peculiar star system Apep consists of two dying stars ...

The NASA and NOAA satellites will launch this fall from Kennedy Space Center in Florida to study and monitor space weather ...

For nature watchers and low-light observers, does the premium-priced, premium build Leica APO-Televid 65 deliver the goods?

The day before my thesis examination, my friend and radio astronomer Joe Callingham showed me an image we'd been awaiting for ...

Heliostats that harness sunlight by day could help detect asteroids by night, offering the U.S. a scalable planetary defense ...