161–180 of 229 results

Black Holes

Setting Limits to Black Hole Gluttony

Black holes may have a limit to how much they can eat in the public eye.

Aerial view of LIGO Hanford

Professional Telescopes

About The LIGO Gravitational-Wave Rumor. . .

Gossip is racing around the physics and astronomy community: has LIGO finally heard its first black-hole merger? Here’s the reality.

magnetic fields around black hole

Milky Way

Our “Magnetic” Black Hole

Astronomers have detected magnetic fields writhing around the Milky Way's central black hole.

Comin' at ya' Baby

Black Holes

Mystery Signal from a Black Hole-Powered Jet

Astronomers have spotted what appears to be a regular signal coming from the blazar PG 1553+113.

corona launched from black hole

Black Holes

How a Black Hole Flares

X-ray observations suggest that flares happen when a black hole's "atmosphere" contracts and launches away from it.

star eaten by black hole

Black Holes

Closest Star-shredding Black Hole

The last hurrah of a star wrenched apart by a supermassive black hole tells astronomers what the stellar crumbs are doing.

Milky Way Center in X-rays

Black Holes

Is the Milky Way's Black Hole Feeding?

The answer is a tantalizing maybe. Astronomers are investigating whether an increase in the number of flares from Sgr A* are due to the recent close passage of a dusty object known as G2.

galaxy NGC 1313

Black Holes

New Mid-size Black Hole

Astronomers think a bright X-ray source in the galaxy NGC 1313 is a mid-size black hole.

Supermassive black hole binary

Black Holes

Does the Nearest Quasar Host a Black Hole Binary?

Astronomers are investigating a new technique for finding close pairs of supermassive black holes, and they might have found one in the nearest quasar.

gas spiraling toward binary black hole

Black Holes

New Evidence for Black Hole Binary

Astronomers have confirmed that the quasar PG 1302-102 is probably a binary supermassive black hole, its members less than a tenth of a light-year apart.

dwarf disk galaxy RGG 118

Black Holes

Teeny Supermassive Black Hole

Astronomers have identified the smallest supermassive black hole ever detected in a galaxy’s center.

Black Holes

A Sleeping Black Hole Awakens

On June 15th a quiet black hole, V404 Cygni, suddenly flared for the first time since 1989.

Black Holes

Revealing Hidden Black Holes

The NuSTAR telescope has spied high-energy X-rays from five supermassive black holes shrouded in a thick veil of dust and gas, a test run that will lead to a better census of these hidden beasts.

Black Holes

Black Hole Too Big for its Breeches

A supermassive black hole in the early universe is at least 10 times too heavy for its host galaxy, raising questions about galaxy and black hole coevolution.

Black Holes

Weighing a Supermassive Black Hole

Combining a novel technique and a world-class telescope, astronomers have measured the mass of the supermassive black hole at the center of barred spiral NGC 1097.

Most Luminous Galaxy

Black Holes

The Most Luminous Galaxy

Researchers using NASA’s Wide-Field Infrared Survey Explorer (WISE) have discovered the most luminous galaxy to date.

Black Holes

Best Evidence Yet That Black Holes Exist

A team of astronomers has found indirect evidence of a supermassive black hole’s event horizon, providing further proof that these wacky objects actually exist in nature.

http://chandra.harvard.edu/photo/2015/ngc2276/index.html

Black Holes

Potential Mid-size Black Hole Found

Scientists have found what seems to be an intermediate-mass black hole in a spiral galaxy 100 million light-years away. If its size is confirmed, it could provide much-needed insight into black hole evolution.

stars arond Sgr A*

Milky Way

New Stars in the Shadow of a Black Hole

New observations suggest that several dozen low-mass stars, and eventually perhaps even planets, are forming just 2 light-years from our galaxy’s supermassive black hole.

artist's impression of a black hole

Black Holes

Monster Black Hole in Early Universe

Astronomers have discovered one of the brightest quasars in the early universe. The source, SDSS J010013.02+280225.8 (hereafter J0100+2802), is powered by a supermassive black hole at a redshift of 6.3, meaning that its light left it 12.8 billion years ago.