SUNSET: 
The Nine-Ringed, Record-Breaking Bullseye Galaxy
Serendipity led to astronomers finding a galaxy surrounded by an unprecedented number of star-filled rings.
Mysterious “Little Red Dots” Give Clues to Early Black Holes’ Formation
A new look at small red galaxies known as “little red dots” reveals that they’re surprisingly abundant in the early universe.
A Bubbly Origin for Odd Radio Circles
Discovered in 2019, odd radio circles (ORCs) are among the newest and most mysterious astrophysical phenomena. New research examines how bubbles blown by black hole jets could create these striking features.
Webb Telescope Images Massive Early Galaxies, Still Finding More Than Expected
Webb Telescope data are still turning up more massive galaxies in the early universe than astronomers expect.
Solved: The Case of the Universe’s “Extra” Light
Astronomers may have finally solved the mystery of how dark space really is.
The Hubble Ultra-Deep Field, 15 Years Later
Fifteen years ago, the Hubble Space Telescope gazed intently at the infrared glow of galaxies in a tiny fraction of the sky. New research shows how this patch of space has changed since then.
Dark Matter–Dominated Galaxies in the Early Universe
Small galaxies in the early universe might have had centers dominated by dark matter, according to new research.
Trio of Early Galaxies Test Our Ideas of Cosmic Evolution
Some galaxies hailing from the infant universe may already hold vast populations of old stars.
Spiral Galaxies May Be a Dime a Dozen in the Early Universe
A new study with data from the James Webb Space Telescope found that galaxies may have started forming spirals far earlier than astronomers previously thought.
Webb Telescope Finds Strangely Bright Galaxies at Cosmic Dawn
Another record-breaker: Two galaxies date to only 300 million years after the Big Bang. How did they grow so big and bright so quickly?
Euclid’s Revolutionary New Images
The Euclid mission has released five new panoramas of celestial objects that are stunning in both their breadth and depth.
Webb Telescope Unveils 19 Galaxies in a New Light
A James Webb Space Telescope survey known as PHANGS has revealed exquisite, just-published details in 19 nearby galaxies.
The Milky Way Might Have Started Out Shaped Like a Pickle
Faraway dwarf galaxies in the universe's distant past — which will become modern Milky Ways — have an unexpectedly stretched-out appearance.
Astronomers Discover “Invisible” Galaxy
A radio survey has serendipitously uncovered a galaxy with no visible stars.
Odd Radio Circles: The Remnants of Furious Galactic Winds
New evidence suggests extreme starbursts and furious galactic winds are at the heart of odd radio circles (ORCs).
JWST Reveals Distant “Galaxy” Is Six-way Galactic Crash
Peering deep into the past, the James Webb Space Telescope’s keen detectors are revealing unprecedented details of some of the oldest structures in the universe.
Astronomers Find 100,000-light-year Bow Shock in the Milky Way’s Outskirts
New simulations showed astronomers where to look for evidence of a dwarf galaxy's bow shock as it crashes through the Milky Way's halo.
Dark Halos and Warped Disks
Galaxies are embedded within halos of dark matter, and the tilt of those halos can affect the galaxy's stellar halo and stellar disk.
Webb, Hubble Telescopes Team Up to Create "Most Colorful View of the Universe"
The Hubble and Webb Space Telescopes have revealed a bounty of galaxies in a pair of colliding clusters, capturing twinkling lights within.
New Cosmology Probe Presents First, Stunning Images
The Horsehead Nebula and other stunning scenes highlight the talents of the just-launched Euclid mission. The telescope will reach into the depths of the cosmos to understand dark matter and dark energy.
