41–60 of 150 results
warped galaxy disk

Milky Way

Warped Milky Way in 3D

Astronomers have used pulsating stars to trace the crooked shape of our galaxy’s disk.

Antlia 2 simulation

Milky Way

Did a Dwarf Galaxy Crash into the Milky Way?

A recent study suggests the dwarf galaxy Antlia 2 had a long-ago run-in with our galaxy, rippling and warping its disk. But not everyone agrees with that scenario.

GD-1 and Palomar 5

Cosmology

Evidence for a Dark Matter Clump in the Milky Way

There are ghosts in our galaxy’s past. Now astronomers have found a way to detect them.

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

Milky Way

Our Quiet Galaxy Used to Burst with Stars

New research shows that our quiet, middle-aged galaxy used to be quite the firecracker — a couple billion years ago it was exploding with new stars.

Milky Way

Astronomers Find Stars Streaming from Our Galaxy’s Biggest Cluster

Astronomers have discovered a stream of stars pulled from Omega Centauri, the largest and most brilliant globular cluster around the Milky Way — and perhaps a one-time dwarf galaxy.

Milky Way and globular clusters

Milky Way

The Milky Way Contains the Mass of 1.5 Trillion Suns

Astronomers are using Gaia and the Hubble Space Telescope to make the most precise measure of the Milky Way’s mass to date. The new result puts our galaxy on par with — if not more massive than — Andromeda.

The Hyades open star cluster

Stellar Science

The Beginning of the End for the Hyades Star Cluster

New measurements from the European Space Agency’s Gaia satellite show that the young stars of the Hyades cluster are beginning to drift apart.

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

Milky Way

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

Milky Way

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)

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.

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