"Our measurements imply that the supermassive black hole mass is 10% of the stellar mass in the galaxies we studied." Using the James Webb Space Telescope (JWST), astronomers have discovered ...

Thousands of these stellar-mass black holes may lurk within our ... No matter their starting size, black holes can grow throughout their lives, slurping gas and dust from any objects that creep ...

Could a decades-long debate about the mysterious movements of stars in Omega Centauri, the largest star cluster in the Milky Way, finally be resolved? Omega Centauri is a massive star cluster with ...

Rather than relying on a cheek swab or a little blood, however, these cosmic DNA tests utilize tiny ripples in the fabric of spacetime called gravitational waves, first proposed by Albert Einstein 110 ...

Opinions expressed by Forbes Contributors are their own. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Illustration shows the merger of two black holes and the ...

Astronomers used Chandra and VLBA to study 16 supermassive black holes, revealing jets that changed direction significantly over millions of years. Stellar-mass black holes form when massive stars ...

Because of energy conservation, the infalling quanta must carry negative energy, which implies that the mass (and hence size ... two types of black holes that exist in nature: stellar-mass ...

(Courtesy: Aurore Simonnet/Sonoma State University) An international team of researchers has detected a series of significant X-ray oscillations near the innermost orbit of a supermassive black hole – ...

Using JWST data, researchers found that some black holes accounted for nearly 10% of their galaxy's stellar mass—far exceeding the 0.01% ratio seen in modern galaxies. The findings challenge ...

A fluffy cluster of stars spilling across the sky may have a secret hidden in its heart: a swarm of over 100 stellar-mass black holes. The star cluster in question is called Palomar 5. It's a stellar ...