Gravitational waves may have provided the first tantalizing evidence of tiny primordial black holes born during the Big Bang, which could account for dark matter.
"It is fascinating that an active galactic nucleus can change its brightness so dramatically over such a short period of time."
Did primordial black holes born during the Big Bang swallow the universe's antimatter, allowing matter to dominate the cosmos?
The research could shed light on how black holes vomit out matter and how this influences their home galaxies.
Merging black holes and neutron stars have unusual oval orbits prior to colliding and merging, which challenge the laws of physics.
The catalog of gravitational waves "heard" by LIGO, KAGRA and Virgo has doubled with detections of spacetime ripples.
Astronomers have used the LOFAR telescope array to create the largest radio survey of the cosmos, revealing 13.7 million cosmic scenes, including supermassive black holes, merging galaxies, and supernova explosions.
Flashes of gravitationally lensed starlight could act as cosmic lighthouses revealing the presence of binary supermassive black holes in close orbit.
The NASA/JAXA X-ray spacecraft has allowed astronomers to dive into the metaphorical "eye of the storm" swirling around supermassive black holes.
Scientists have discovered that active supermassive black holes don't just kill their home galaxies, but can also eradicate star formation for their neighbors.
