21–40 of 115 results
X-ray binaries around galactic center (art)

Milky Way

Our Galaxy's Center Might Hold Thousands of Black Holes

A new study has uncovered a dozen stellar-mass black holes within 3 light-years of the supermassive black hole at our galaxy’s core — and these might be just the tip of the iceberg.

Milky Way

Dwarf Galaxy Collision Evicted Milky Way Stars

A long-ago encounter between our galaxy and an orbiting dwarf might have ejected some of the Milky Way’s stars.

K2-138 planetary system art

Milky Way

60-Second Astro News: Exoplanets, Comet 41P & Milky Way Clouds

Citizen scientists have discovered a system of five sub-Neptune planets, NASA scientists follow the spin of Comet 41P, and speedy clouds of gas shed light on the Millky Way's history.

Milky Way

Analog of the Milky Way and the Magellanic Clouds

A hunt for merging dwarf galaxies has yielded an intriguing result: 180 million light-years away, a galaxy very similar to the Milky Way — with two dwarf-galaxy satellites just like our own Magellanic clouds

Location of water maser on far side of Milky Way

Milky Way

Seeing the Far Side of the Milky Way

The detection of a star-forming region 66,500 light-years from Earth, on the other side of our galaxy’s center, lends weight to the existence of an extended arm of the Milky Way.

Milky Way

Total Solar Eclipse: All-Sky Maps

Wondering what you'll see during the total solar eclipse on August 21st? Use our all-sky maps to figure it out!

Herschel Sprint: NGC 4911

Galaxies

Milky Way May Be Made with Swapped Gas

High-powered simulations suggest that half of the material in the Milky Way could come from other galaxies.

Speeding stars

Milky Way

Artificial Neural Network Finds Speeding Stars

Astronomers found six runaway stars when they applied a neural network to data from the European Space Agency’s Gaia mission, which is set to map a billion stars across the Milky Way and beyond.

Milky Way

Exploring the Minispiral at the Milky Way’s Center

The region around Sgr A*, the 4-million-solar-mass black hole at the heart of our galaxy, is a complex and dynamic place. New Atacama Large Millimeter/submillimeter Array (ALMA) observations of the Milky Way’s center now reveal more about this harsh, inhospitable environment.

Gaia video of 5 million years

Milky Way

Watch Milky Way’s Stars Move 5 Million Years into the Future

Astronomers have transformed star data from the Gaia and Hipparcos missions into a video that predicts stellar motions millions of years from now.

Sagittarius Stream

Milky Way

Origin of Our Galaxy's Most Distant Stars

The most distant stars discovered in the Milky Way might have been ripped away from a companion galaxy.

Milky Way

New Mass Estimate for the Milky Way

Astronomers have observed the motion of distant star clusters to measure our galaxy’s mass. The new estimate places the Milky Way in the lightweight class of galaxies.

Pluto's Sputnik Planum in color

Milky Way

Top 12 Astronomy News Stories of 2016

From the discovery of gravitational waves to the building evidence that a massive planet could exist beyond Pluto, it has been a thrilling year for astronomy research. We recap.

HI4PI maps Milky Way's neutral hydrogen

Milky Way

Astronomers Map Milky Way in Incredible Detail

Astronomers have mapped neutral atomic hydrogen, which profuses the space between stars, in unprecedented detail to create a beautiful radio-wavelength portrait of the Milky Way.

superbubble in Milky Way

Milky Way

Cloud Punches Hole in Milky Way

An intergalactic cloud has slammed into the Milky Way Galaxy and left a big hole.

Milky Way

Milky Way's New Neighbor: A Giant Dwarf

Astronomers have discovered a “feeble giant”: one of the largest dwarf galaxies ever seen around the Milky Way.

Hypervelocity Binary System

Milky Way

Speedy Stars Weigh Milky Way’s Dark Matter Halo

It’s a bird! It’s a plane! It’s a . . . pair of hypervelocity stars? The surprising stellar duo may place constraints on the mass of our galaxy’s unseen dark matter halo.

Milky Way Galaxy Halo

Milky Way

Galactic Archaelogy in the Milky Way Halo

The motions of thirteen stars in our galaxy’s halo outline a shell-like structure, perhaps the remains of an ancient galactic collision.

Milky Way

A Cold New View of the Milky Way Galaxy

A stunning submillimeter mosaic of the Milky Way Galaxy captures a portrait of the cold dust and gas swirling along the galactic plane.

Ripples in the Milky Way's Disk

Galaxies

A Galaxy Hit-and-Run

Ripples found in the Milky Way’s disk reveal our galaxy survived an ancient hit-and-run. Now, astronomers might have caught the culprit.

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