"Theories involving substantial formation of stars prior to or together with the black hole formation and growth are very ...

Astronomers have witnessed a distant supermassive black hole devouring its surrounding matter so rapidly that it is "burping" ...

What happens when two rare ring galaxies collide? They form an infinity symbol—or the face of a cosmic owl, depending on how ...

NASA astronomers have confirmed what may be the greatest discovery of the era. They found a significant reservoir of water that was hidden in the cosmos, and that surrounds a quasa ...

Gravitational waves stretch and squeeze the fabric of space and time itself. When space/time is squeezed, pulsar pulses ...

Particles orbiting a black hole could collide at colossal energies, generating collision products that may offer valuable insights for particle physics ...

The Helix Galaxy, located 42 million light years away, is an unusual object as it is both a polar ring and a lenticular ...

Hubble spotted a rare off-center black hole shredding a star, revealing the first optical discovery of a wandering ...

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

A new analysis of BL Lacertae by NASA’s Imaging X-ray Polarimetry Explorer sheds light on the emission mechanisms of active ...

Cosmic radiation occasionally contains enormous amounts of energy, but we don’t know why or where this radiation comes from.

Astronomers studying a distant galaxy cluster stumbled upon ancient radio signals that might hold clues to the formation of ...