I/ATLAS has unexpectedly become bluer than the Sun, hinting that it could be emitting light, not just reflecting it — a sign ...

For Halloween, our space photo of the day shows a brilliant orange sunset over Kitt Peak Observatory in Arizona.

NASA's Solar Dynamics Observatory captured a huge filament eruption in multiple wavelengths. Credit: Space.com | footage ...

NASA’s Habitable Worlds Observatory "will draw on technologies proven by the agency’s Hubble, Webb and upcoming Roman Space ...

An ominous-looking nebula named NGC 246 lurks in the constellation Cetus about 1,600 light-years away from Earth. It is ...

The Vera Rubin Observatory (VRO) hasn't yet begun its much-anticipated Legacy Survey of Space and Time. But it saw its first ...

Interstellar invader Comet 3I/ATLAS is still full of surprises — an unexpected brightening has scientists baffled ...

Space.com, which first reported the images, notes that this kind of Halloween-themed coincidence isn't new. The Sun has shown ...

Perched high in Chile's Andes, the Vera C. Rubin Observatory sees a breathtaking view of the Milky Way's southern arc.

A Flagstaff-based space company has won a $30 million contract to raise the orbit of a space-based NASA observatory next year ...

Sydney scientists fixed NASA’s James Webb Space Telescope without ever leaving Earth. Using AI-powered software called AMIGO, ...

The Richard F Caris Mirror Lab in Tucson is actually attached to the UA football stadium, with some parts being below seats ...