41–60 of 275 results
a glowing orb with smaller dots of lights in various colors in it and around it against a black background

Galaxies

A Cosmic Collision Could Have Made Two Dark Matter–Less Galaxies

Astronomers connect the dots between two strange doppelganger galaxies, uncovering what might be a string of galactic pearls created in a cosmic collision 8 billion years ago.

Hickson Compact Group 40

Galaxies

Happy Birthday, Hubble!

The Hubble Space Telescope turns 32 on April 24th, and the team behind the telescope is marking the occasion with the release of a galactic family picture.

AGN (art)

Galaxies

Hubble Image Reveals Possible Quasar Forerunner

A distant object in a deep Hubble Space Telescope field could be in transition from ordinary galaxy to brilliant beacon of light.

Image of most distant galaxy candidate

Galaxies

Are These the Most Distant Galaxies Yet Seen?

Two fuzzy red objects in the early universe may be galaxies shining at us from only a few hundred million years after the Big Bang.

Lensing close-up

Cosmology

Meet Earendel, the Most Distant Star Astronomers Have Observed

The Hubble Space Telescope has revealed a single star whose light has traveled for 12.9 billion years to Earth — the most distant star known.

Odd Radio Circle (ORC) 1

Galaxies

New Image Reveals Possible Origins of “Odd Radio Circles”

This faint ring of radio emission might signal a momentous event in galactic evolution. Then again, it might be something else entirely.

Spiral galaxy NGC 1097, close-up on central region

Black Holes

Magnetic "Spoon" Feeds Supermassive Black Hole

Astronomers have imaged the magnetic field along which gas flows to a galaxy's central black hole.

Artist's impression of AGN

Galaxies

Supermassive Black Hole Hides Behind a Ring of Dust

A high-resolution infrared image has revealed a dust screen obscuring a gas-devouring supermassive black hole in the center of the galaxy NGC 1068, confirming 30-year-old predictions.

Dark matter-less galaxy

Cosmology

How Galaxies Lose Their Dark Matter

A careful study of cosmological simulations shows that dark matter–less galaxies aren't impossible — just really rare.

An artist's impression of the dramatic outflows from an active galaxy’s nucleus.

Galaxies

Dwarf Galaxies Shed Light on Black Hole Origins

Astronomers are searching nearby dwarf galaxies for the ancient origins of supermassive black holes.

Five cluster collisions show how the shapes evolve from bullet to cone to curled tongue

Galaxies

Astronomers Find Confounding Cone Shape in Cluster Collision

Galaxy clusters take eons to collide. Now, astronomers have caught a pair of merging clusters in an in-between stage never seen before.

Magellanic Clouds

Galaxies

How Our Largest Dwarf Galaxy Keeps the Others In Line

New research may explain why satellite galaxies align themselves around the Milky Way

Image of two bright galaxy cores

Black Holes

Nearest Supermassive Black Hole Pair Discovered

Astronomers have observed a pair of supermassive black holes set to collide in 250 million years.

Molten Ring

Galaxies

60-second Astro News: Magnified Galaxies Provide Window to Early Universe

Astronomers use cosmic magnifying lenses to peer into the universe's distant past.

Zoomed-in view of barred spiral galaxy NGC 4921

Galaxies

Watch Black Holes Grow, Galaxies Fall

Watch black holes grow and galaxies fall — astro photos and visualizations to get you through the week.

Orphan cloud seen in X-rays and visible light

Galaxies

Lost & Found: Milky Way-size "Orphan Cloud"

Astronomers have found a giant gas cloud, likely stripped from its parent galaxy long ago, in a cluster 330 million light-years away.

Galaxies

Galaxies That Evolve Together But Don’t Stay Together

A study of 36 dwarf galaxies within a volume of space spanning 13 million light-years show they all have remarkably similar histories despite the vast distances between them.

two colorful radio gets stream out either side of a central, invisible point

Galaxies

From Starving Black Holes to Warped Galaxies

Hot topics from the American Astronomical Society summer meeting range from colliding galaxies, to warped galaxies, to starving black holes.

wo spiral galaxies appear as light colored swirls on either side of an orange star.

Galaxies

Astronomers Look into the Past of Local Dwarf Galaxies

A combination of simulations and observations indicates that galaxies like the Large Magellanic Cloud control when punier dwarfs plunge into large galaxies.

Galaxies

Not All Star-forming Clouds Are The Same

Astronomers have created the first high-resolution maps of the big, dense gas clouds that form stars within galaxies.