21–40 of 123 results
Warped spiral galaxy ESO 510-13

Milky Way

The Milky Way Is Warped in More Ways Than One

Astronomers mapping out luminous stars across our galaxy's disk found that the Milky Way is warped — and multiple factors are twisting its shape.

Image of Small Magellanic Cloud

Galaxies

Evidence Mounts for a Magellanic Collision

Astronomers have suspected for some time that the Large and Small Magellanic Clouds collided in the recent past. The Gaia space telescope provides striking new evidence for a head-on collision.

Illustration of stars sprinting through our Galaxy

Milky Way

Some Stars Around Galaxy May Be From Elsewhere

Data from the Gaia satellite reveal 20 new high-speed stars, 13 of which appear to have originated outside of the Milky Way.

Magellanic Clouds

Galaxies

The Magellanic Clouds Might Once Have Been a Trio

The Milky Way's two largest companion galaxies may have once been a threesome — but new data from the Gaia satellite leaves the satellites' history an open question.

Artist's impression of galactic encounter's aftereffects

Milky Way

Pattern in Milky Way's Stars Suggests Recent Galactic Whack

An unexpected pattern in the Milky Way's disk of stars points to a recent whack from another galaxy.

Gaia's map of 1.7 billion stars in the Milky Way and beyond

Milky Way

Gaia Maps 1.7 Billion Stars, Widens Cosmic Census

With its second data release, the European Space Agency's Gaia satellite has redefined the way we look at our galaxy.

The Milky Way, cropped

Milky Way

Amateurs Take Huge Panoramic View of the Milky Way — Without a Telescope

This is what the largest available image of the Milky Way using only off-the-shelf photographic equipment looks like.

Magellanic Clouds

Milky Way

Supergiant Star Caught Fleeing In Another Galaxy

The discovery of a runaway star in the Small Magellanic Cloud suggests that runaway stars are a common phenomenon in the universe.

X-ray binaries around galactic center (art)

Black Holes

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

Milky Way

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.

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