Another describes a long straight contrail cutting across a galaxy called NGC3627. This one is likely caused by a black hole of about 2 million times the mass of the sun, travelling at 300km/s. Its ...

Internationally-vetted data suggests we've witnessed a rare intermediate-mass black hole devouring a white dwarf along the outskirts of a distant galaxy.

All the “normal” matter, like the stars, gas, dust, and people, is called baryonic matter, and it’s basically the tiny visible fraction of a universe that’s mostly invisible and still not fully ...

"It's really difficult to overstate how bad we are at finding intermediate mass black holes." ...

Astronomers have found growing evidence that runaway black holes are hurtling through galaxies at extreme speeds, leaving ...

In a conventional system like our own, rocky planets such as Mercury, Venus, Earth, and Mars orbit closest to the host star. Farther out, gas giants ...

If confirmed, this disappearing act might provide the closest and best observational evidence for the birth of a black hole ...

Today (Feb. 17), an annular solar eclipse will commence its journey across a remote region of Antarctica where it will be visible to more penguins than people. The partial solar eclipse portion of the ...

Astronomers watched a massive star in the Andromeda Galaxy vanish over a decade, providing rare evidence of a "failed ...

Initial analysis suggested the nucleus was approximately 13.7 kilometers wide (roughly city-sized); however, researchers ...

In the nearby Andromeda Galaxy, a massive star bright enough to stand out for years has gone dark. Not in a blaze of glory.

What if the Milky Way’s central “black hole” isn’t a black hole at all? A new model proposes that an ultra-dense dark matter core could mimic its gravitational pull.