A distant cluster of galaxies is wrapped in a vast halo of high-energy particles that could be the work of supermassive black ...

NASA/ESA's Hubble Space Telescope captures an image of the active galactic center in spiral galaxy UGC 11397, located in the ...

These black holes are the most distant and stable objects we know. Using a technique called very long baseline interferometry ...

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in ...

The first ever space telescope, the Orbiting Astronomical Observatory 2 (OAO-2), was launched into the low Earth orbit in ...

Could the Universe have been born inside a black hole? This question, raised by a team of scientists, challenges the Big Bang ...

Hubble Space Telescope snapped an image of UGC 11397, a spiral galaxy situated in the constellation Lyra, about 250 million ...

Stargazers may catch a cosmic light show this Fourth of July weekend when the Milky Way appears in the night sky across the ...

The light that the NASA/ESA Hubble Space Telescope collected to create this image reached the telescope after a journey of ...

NASA's Chandra X-ray Observatory provides a new look at the Andromeda galaxy in this multi-wavelength image that includes ...

Astronomers have discovered the most distant mini-halo ever seen—10 billion light-years away—revealing that galaxy clusters ...