SUNSET: 
Cosmic Fog Lifted Earlier Than Expected
New observations show that the universe's first light penetrated the fog of the cosmic dark ages just 330 million years after the Big Bang.
Hubble Investigates Dwarf Galaxies Aligned Around the Andromeda Galaxy
A new Hubble Space Telescope survey shows intriguing patterns of star formation in dwarf galaxies aligned in a plane around the Andromeda Galaxy.
Euclid Discovers Einstein Ring Around Nearby Galaxy
The Euclid space telescope has uncovered an "Einstein ring" in an unexpected place — a nondescript galaxy we've known for more than a century.
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.
