21–40 of 236 results
The center of a globular cluster with hundreds of thousands of stars colored red white and blue

Black Holes

Does This Star Cluster Host a Black Hole in Its Core?

The well-known star cluster Messier 4 might have an elusive, midsize black hole hidden at its center, but the evidence isn’t conclusive yet.

Black Holes

“Rogue Black Hole” Could Be Something Much Simpler

An unusual streak of stars thought to have formed in the wake of a wandering supermassive black hole might just be a spiral galaxy seen edge-on.

bright dot with stream with bright edges and mostly empty interior shooting out from it, with a zoom on the bright dot showing it's a ring

Black Holes

First Image of Black Hole Shadow and Jet Together

For the first time, astronomers have seen how the big plasma jet shot out by a supermassive black hole connects to the material falling into the black hole.

two glowing orange rings, one thick, one thin

Black Holes

The First Black Hole Image, Take Two

A new analysis of Event Horizon Telescope data sharpens our view of the glowing gas encircling the black hole.

A pair of bright AGN couple at the center of two merged galaxies

Black Holes

Massive Black Hole Duo Spotted at Cosmic Noon

The most distant pair of supermassive black holes discovered offers a unique insight into how galaxies merge.

X7 spaghettifying

Black Holes

Watch the Milky Way’s Black Hole Spaghettify a Cloud

Two decades of observations show a dusty gas cloud elongating as it approaches our galaxy's supermassive black hole.

Runaway black hole (art)

Black Holes

Have Scientists Found a Rogue Supermassive Black Hole?

An unusual stellar streak emerging from a distant galaxy might be a sign of a runaway supermassive black hole, scientists suggest.

Image of Milky Way's black hole shows golden ring with three spots in it

Black Holes

Searching for the Seeds of Supermassive Black Holes

The seeds of supermassive black holes could show up in an upcoming sky survey with JWST.

Gravitational waves from GW190521

The Black Hole Files with Camille Carlisle

The Challenge of Weird Black Hole Mergers

When spacetime shivers last only a fraction of a second — as in the case of the massive-black-hole merger GW190521 — astronomers struggle to uncover their origins.

Blazar (art)

Black Holes

X-rays Offer View Inside the Black Hole-Powered Plasma Guns

Polarized X-rays are helping astronomers take a closer look at blazars’ “plasma guns,” the particle jets powered by supermassive black holes.

Comet ZTF (C/2022 E3) up close

Explore the Night with Bob King

Sneak Peek at Two Promising Comets

Ready to chase comets? We look at two fuzzy solar system travelers that will keep you on your toes all fall and winter long.

torn-apart star's innards spiral around black hole

Black Holes

Shredded Star Reveals a Dwarf Galaxy’s Central Black Hole

A luminous flare provides astronomers with a rare opportunity to measure the mass of an otherwise quiescent black hole at the center of a dwarf galaxy.

Black sphere near a glowing sphere

Black Holes

Wobbly Star Reveals the Closest Black Hole Yet

The most compelling dormant stellar-mass black hole candidate in the Milky Way orbits a Sun-like star only 1,570 light-years away.

Orange ring around dark center, with a hot bubble circling it

Black Holes

Hotspot Zooms Around Our Galaxy’s Black Hole

Astronomers have detected a bubble of hot gas circling our galaxy’s central black hole soon after seeing a flare, suggesting both arose from the same process.

Blazar (art)

Black Holes

Blazar's Outburst Hid Repeating Signal

Pulses originating almost a billion light-years away hint at extreme physics near a supermassive black hole.

Blazar (art)

Black Holes

Giant Black Holes Make Tiny, Ghost-like Particles

Blazars, the gas-guzzling black holes at the center of galaxies, could make most of the tiny particles known as neutrinos we catch on Earth.

Artist's impression of black hole binary

Black Holes

A Black Hole Lurks in a Galaxy Near Our Own

Astronomers have found a dormant black hole orbiting a massive blue star in the Large Magellanic Cloud, a satellite galaxy of the Milky Way.

supercomputer simulation shows gas flows in multiple colors

Black Holes

Where Did the First Quasars Come From?

New research shows how black holes with tens of thousands of Suns' worth of mass can form in the universe's early years.

diffuse glow surrounding a bright core

Black Holes

Monstrous Black Holes Spin More Slowly — But Why?

X-ray observations add to growing evidence that the most massive black holes have a different past than their lightweight peers.

a black dot at the center of a swirl of pink, purple, orange, grey, and other colors

Black Holes

Have We Found the First Rogue Black Hole in the Milky Way?

Hubble observations have revealed a stellar-mass compact object — a black hole or possibly a neutron star — wandering our galaxy.