Galaxies

Latest about Galaxies

a swirling blue black and white circular center is seen from an angle, caved inside red and orange gases around its parimeter. a beam of light shoots from the center

Astronomers discover thousands of active red galaxy hearts with powerful radio signals

By Keith Cooper published

The radio signals hint at an important evolutionary step in the lives of galaxies.

Galaxies
A simulated image of gravitational-wave sources in our galaxy.

How our Milky Way galaxy would look in gravitational waves (video)

By Keith Cooper published

The gravitational waves are emitted by ultracompact binaries of black holes, neutron stars and white dwarfs.

Galaxies
An illustration of the Milky Way on a black background, with the galaxy's edges drooping down on one side and lifting up on the other

Our entire galaxy is warping, and a gigantic blob of dark matter could be to blame

By Ben Turner published

An invisible halo of misaligned dark matter could explain the warps at the Milky Way's edges.

Galaxies
a bright, gaseous galaxy in space

China's new wide-field survey telescope scopes out Andromeda galaxy

By Andrew Jones published

A new high-resolution, wide-field telescope situated in China offers its first stunning view.

Galaxies
A bright galaxy hangs in space near a smear of blue nebulas gas and beside a mush smaller, more distant galaxy.

Stunning image of Andromeda galaxy takes top astronomy photography prize of 2023 (gallery)

By Josh Dinner published

The Royal Observatory of Greenwich's annual contest draws more than 4,000 submissions, and the winning images from this year's categories are stunning.

Galaxies
An illustration of the billion light year wide bubble of galaxies named Hoʻoleilana.

Bubble of galaxies spanning 1 billion light-years could be a fossil of the Big Bang

By Robert Lea published

An immense bubble of galaxies, one billion light years wide and located 820 million light-years away, could be fossilized remains of the Big Bang.

Galaxies
Located centrally on a dark background is an electric blue donut-shaped blob, showing the orientation of the magnetic field of the distant galaxy. The bright donut is not complete, and there are only two main features. The lines of the magnetic field give it an almost furry texture. The right-hand side of the donut forms a bright, curved banana-like shape. Instead, on the left-hand side, there is another bright region, circular in shape.

Earliest magnetic galaxy ever detected offers clues about Milky Way history

By Keith Cooper published

The magnetic field is a thousand times weaker than Earth’s, but is spread out across 16,000 light years.

Galaxies
Several circles outline galaxies around central points.

Galaxy shapes can help identify wrinkles in space caused by the Big Bang

By Sharmila Kuthunur published

A new method to detect Baryon Acoustic Oscillations in the universe could help measure cosmic distances more accurately.

Galaxies
The clashing galaxies NGC 4568 (bottom) and NGC 4567 (top) as seen by the Gemini North telescope in Hawai‘i

Our Milky Way galaxy was not always a spiral. Here's how it changed shape

By Robert Lea published

A century-old mystery of how galaxies shift shapes has been solved by considering "survival of the fittest" collisions between cosmic titans also revealing the Milky Way was not always a spiral.

Galaxies
glowing arch of milky way above a desert landscape with stars

You'll travel nearly a trillion miles in your lifetime, even if you never leave home. Here's how.

By Paul Sutter published

Whether you're a frequent jet-setter or a couch potato, you travel much more than you think, thanks the motion of the Earth, sun, Milky Way galaxy and more.

Galaxies
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