41–60 of 351 results
hotspot around black hole

Black Holes

Astronomers Use Annihilated Star to Clock Black Hole’s Spin

The glow of a star torn up by a supermassive black hole has enabled researchers to measure how fast the black hole whirls around.

3C 273

Black Holes

Rotating Gas in a Quasar’s Heart

Astronomers have “imaged” gas as it orbits a supermassive black hole some 2 billion light-years away.

Illustration of black holes merging

Black Holes

What LIGO Teaches Us About Black Holes

The rising count of gravitational-wave events is giving us a new look at a once-invisible population of black holes.

hotspot near event horizon

The Black Hole Files with Camille Carlisle

Gas Seen Moving Near the Event Horizon

Astronomers have detected three flares from near our galaxy’s central black hole that look like gas closely orbiting the unseen object.

Cygnus A in radio

The Black Hole Files with Camille Carlisle

Odd Jets Might Signal Dual Black Holes

Off-kilter, curved, and otherwise unusual beams of plasma from galaxies’ cores might track the dueling dances of two supermassive black holes.

Milky Way ancient merger

Galaxies

Ancient Merger Wreckage in the Milky Way

Mounting evidence indicates that our galaxy smashed up another smaller galaxy roughly 10 billion years ago.

water plume on Europa

Astrobiology

Source for Europa Geysers Missing

A new look at old data suggests there’s something missing from suspected plumes on Europa: a heat source.

Still from simulation of two supermassive black holes merging

The Black Hole Files with Camille Carlisle

Video: The Glow of Spiraling Black Holes

New calculations reveal what two supermassive black holes about to merge would look like in ultraviolet and X-rays.

Jupiter, color-enhanced

Solar System

Jupiter’s Magnetic Field Has Weird Structure

Juno observations reveal that Jupiter’s magnetic field has a wacky plume.

Stars orbit black hole

Black Holes

Star Swings Around Black Hole, Tests Gravity

Astronomers have seen a star’s light redden as it passed our galaxy’s central black hole, just as general relativity predicts.

tidal disruption event illustration

Stellar Science

Black Hole Destroys Star and Shoots Jet

Astronomers have watched the growth of a jet fueled by a shredded star.

wormhole mouth

The Black Hole Files with Camille Carlisle

Science Fiction Wormholes Don’t Exist

Hoping for faster-than-light travel? Wormholes aren't the paths you're looking for.

Mojave drill site on Mars

Solar System

Methane and Other Organics on Mars

The Curiosity rover has detected organic molecules in ancient rocks on Mars.

G2 en route to black hole

The Black Hole Files with Camille Carlisle

More Mystery Objects in the Galactic Center

Astronomers have discovered three more red, dusty objects near the Milky Way’s central black hole that could be merged stars.

dunes on pluto

Solar System

Dunes on Pluto

Planetary scientists think they’ve found wind-built ripples of methane ice on the king of the Kuiper Belt.

conceptual image of a black hole

The Black Hole Files with Camille Carlisle

Do Big Black Holes Wander the Galaxy?

New simulation work suggests that galaxies like the Milky Way could be home to a dozen supermassive black holes.

galaxy without dark matter

Galaxies

A Galaxy Without (Much) Dark Matter

Astronomers have found a peculiar object: a fluffy galaxy that has little to no dark matter.

Jupiter's South Pole

Solar System

Amazing Storms, Jet Streams on Jupiter

NASA’s Juno spacecraft has found breathtaking cyclones at Jupiter’s poles and probed how deep the planet’s jet streams go.

Robo-AO

Exoplanets

Extra Stars Might Downsize Exoplanets

Follow-up studies of candidates planetary systems found by NASA’s Kepler mission suggest that companion stars make some worlds appear smaller than they really are.

Astrobiology

Some Plants Grow Well in Martian Soil

Astrobiology students cultivated leafy greens, sweet potatoes, and even hops in simulated Martian dirt.

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