The newly-discovered intermediate-mass black hole, named NGC 6099 HLX-1, resides in a compact star cluster on the outskirts of the elliptical galaxy NGC...
Using twin detectors of NSF’s Laser Interferometer Gravitational-wave Observatory (LIGO), astrophysicists with the LIGO-Virgo-KAGRA (LVK) Collaboration...
Astronomers using the Dark Energy Spectroscopic Instrument (DESI) on NSF’s Nicholas U. Mayall 4-m telescope at Kitt Peak National Observatory, a program...
Using data from ESO’s Very Large Telescope (VLT) and other telescopes, astronomers have found evidence for an intermediate-mass black hole in IRS 13,...
Using more than 500 images from the NASA/ESA Hubble Space Telescope, astronomer have found evidence for a 20,000-solar-mass black hole at the center of...
Astronomers using CSIRO’s Australia Telescope Compact Array have captured the most detailed radio image ever seen of 47 Tucanae, the second brightest...
Messier 4 is a globular cluster full of ancient stars in the constellation of Scorpius, approximately 7,200 light-years away.
Vitral et al. suspect that...
Using the NASA/ESA Hubble Space Telescope, astronomers have captured a striking new photo of the densely packed globular cluster NGC 6325.
This Hubble...
Intermediate-mass black holes in the mass range between 100 and 100,000 solar masses are the missing link between stellar-mass black holes and super massive...
A rare intermediate-mass black hole may have been delivered to the barred spiral galaxy NGC 4424 by another, smaller galaxy, according to an analysis of...
Black holes are demolishing thousands of stars in a quest to pack on weight, according to an analysis of images of 108 galaxies taken by NASA’s Chandra...
Astrophysicists from the LIGO-Virgo-KAGRA Collaboration have detected a further 35 gravitational waves since the last catalog release in October 2020,...
Since the first observation of merging black holes in 2015, astrophysicists have been repeatedly surprised by their large masses. They originally expected...
The intermediate-mass black hole in question was caught in the act of swallowing a star, called a tidal disruption event. Dubbed 3XMM J215022.4-055108,...
A gravitationally lensed gamma-ray burst, designated GRB 950830, helped astronomers detect a black hole about 55,000 times more massive than the Sun.
An...
Astronomers using the NASA/ESA Hubble Space Telescope have found evidence for dozens of stellar-mass black holes lurking in the core-collapsed, globular...
Astronomers using the twin LIGO detectors located in Livingston, Louisiana, and Hanford, Washington, and the Virgo detector located near Pisa, Italy, have...
A bright X-ray source in a massive star cluster in the outskirts of 6dFGS gJ215022.2-055059, a barred lenticular galaxy located about 806 million light-years...
In a paper published in the Astrophysical Journal, a team of astronomers in Italy proposes that heavy seeds of supermassive black holes formed via the...
A runaway star called PG 1610+062 was probably ejected from the Milky Way’s Carina-Sagittarius spiral arm at a velocity of 341.8 mi/s (550 km/s) with...
