141–160 of 178 results

Black Holes

Black Hole Trio Found

Astronomers have discovered that one member of a pair of supermassive black holes is actually a pair itself, turning the system into the most distant black hole triplet yet detected and raising hopes for future discoveries.

Black Hole-Jet Simulation

Black Holes

A MAD New Way to Make Black Hole Jets

Newly published observations provide the first real evidence supporting a theory that tells us how black hole jets form.

Fornax galaxy cluster, enhanced

Black Holes

Peering Into Black Holes' Pasts

Galaxies’ central black holes are surprisingly simple creatures at heart, but they have a complicated past. New studies are starting to remove history’s obfuscating veil.

Supermassive black hole binary

Black Holes

Black Holes Tango in Distant Galaxy

A bizarre X-ray flare first spotted in 2010 could be a signal from two black holes that will ultimately unite into a single beast.

Black Holes

A New Galactic Yardstick

Astronomers have developed a new method to measure distances to bright but faraway galaxies, a tool which will help better constrain the expansion rate of the universe.

http://hubblesite.org/newscenter/archive/releases/2000/2000/37/image/a/

Black Holes

Dust in the Heart of Circinus

Infrared observations of the Circinus Galaxy may help reveal the shape of the dusty region fueling its active galactic nucleus and shed light on what governs dust structures in other galaxies.

Black Holes

Black Hole Spins Super Fast

X-ray observations and cosmic coincidence unveil the details of a distant supermassive black hole. The result could be a first step in expanding our understanding of how black holes have beefed themselves up over the last several billion years.

Infrared view of Messier 83

Black Holes

Black Hole Ate Too Much

A stellar-mass black hole in the iconic galaxy M83 seems to have kept eating long after it should have stopped. If true, the discovery could have implications for how much black holes can affect their environments.

Galaxies

Galactic Runts Carry Beefy Black Holes

Astronomers have found supermassive black holes in 151 dwarf galaxies, surprising expectations and providing a time machine into black hole formation.

Galaxies

A Double Black Hole?

Strange emission from a distant galaxy paints an enigmatic picture of what’s happening inside its core. One solution: instead of one supermassive black hole, the galaxy hosts two trapped in a tight dance around each other.

Stellar Science

Downsizing a Black Hole

Astronomers have revealed a supposedly monster black hole to be rather ordinary in size.

Black Holes

Monster Burst Challenges Theories

Observations of one of the most powerful supernovas ever recorded suggest that the standard model for gamma-ray bursts might be missing a piece of the puzzle.

Black Holes

Black Hole Spews Atoms

Observations reveal ionized metals in the jet shot out by a black hole, long-sought information that will help astronomers understand how these objects create their powerful beams.

Milky Way

Astronomers Discover Black Hole's Dieting Strategy

The Milky Way's central supermassive black hole eats only a fraction of the gas available to it. New X-ray observations suggest how the beast manages to stay so trim when faced with a feast.

Black Holes

New Pulsar Explores Heart of Milky Way

A pulsar discovered last April is helping astronomers measure the magnetic field surrounding our galaxy’s central black hole.

Black Holes

Snack Starts Swinging Around Black Hole

Astronomers around the world are watching as the gaseous object called G2 heads for a close pass around the Milky Way's central supermassive black hole. Now it looks like the distended cloud is starting to swing back toward us.

Black Holes

Magnifying Quasars

Twinkle, twinkle, quasi-star: cosmic lenses could tell us what you are.

Black Holes

A Cosmic Sleight of Hand

Astronomers have been waiting for our galaxy’s slumbering supermassive black hole to stir for a snack. Instead, the universe handed them a different treat.

Black Holes

Brilliant GRB Blast with an Amateur Twist

An exceptionally powerful gamma-ray burst on April 27th wowed astronomers around the world — and its fading was tracked by an alert backyard observer.

Stellar Science

When Supergiants Explode

Astronomers have announced a new class of gamma-ray bursts, possibly created when some of the biggest stars in the universe go supernova.

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