SUNSET: 
"Dead Ringer" for the Milky Way Found in Early Universe
A cosmic magnifying glass has revealed a Milky Way-like galaxy in the early universe that doesn’t conform to cosmologists’ expectations.
Asteroid Ceres: An Ocean World
Scientists have thought that the largest main-belt asteroid, Ceres, had an ancient ocean beneath its surface. But new data from the Dawn spacecraft show the underground ocean might still be there.
Neutron Star Found in Supernova 1987A
After decades of searching, astronomers have finally found evidence for a collapsed core at the center of the nearest supernova recorded in recent history.
Remains of an Ancient Star Cluster Revealed
A torn-apart globular cluster provides a window into the Milky Way's past.
First Image of a Young Sun and Two Giant Planets
For the first time, astronomers have imaged multiple planets orbiting a Sun-like star.
New 3D Map of the Universe — and a Growing Cosmological Debate
The Sloan Digital Sky Survey has released a new map of the universe — and the results confirm ongoing tension over the expansion rate of the universe.
Citizen Scientists Help Discover “Weird” Brown Dwarfs
Astronomers and citizen scientists have found two would-be stars lacking heavy elements. They’re most likely ancient survivors of our galaxy’s earliest days.
New Launch Date for James Webb Space Telescope
NASA has delayed its beleaguered James Webb Space Telescope to October 2021, in part due to the COVID-19 pandemic.
European Solar Orbiter Takes Closest-ever Images of the Sun
The first images to be released from the European Space Agency’s Sun-imaging spacecraft show intriguing “campfires” that could help explain a solar mystery.
New Evidence for Nanoflares?
Astronomers have spotted weak bursts of low-frequency radio emission coming from all over the Sun.
Three Nearby Exoplanets to Explore
A trio of nearby exoplanets make tempting new targets for next-gen telescopes.
First All-sky Map from eRosita
The first all-sky X-ray map to be released in 30 years reveals new wonders of the hot and energetic universe.
Astronomers Discover a Newborn Magnetar and a New Cosmic Beat
This week, astronomers announce a newborn magnetar and a fast radio burst that's bursting to a beat.
Astronomers Discover Huge Circular Arc Near the Big Dipper
The 30-degree circular arc is likely a shock front expanding from a star that exploded some 100,000 years ago.
The 10 Million-Degree Gas Around the Milky Way
New observations show ultra-hot gas around the Milky Way. Stellar explosions may have driven this gas out of our galaxy.
New Horizons' "Alien View" from the Outer Solar System
NASA's New Horizons mission deep in the Kuiper Belt has measured the parallax to two nearby stars with the help of Earth-based observers.
Galaxies Are Even Bigger Than You Think
Galaxies swim in hot gas that extends much farther out than their stars — and plays an important role in the galaxy's evolution.
Astronomers Witness the Birth of Planets
Two new sets of observations show astronomers what planet formation looks like.
Rotating Disk in Early Universe Explains Galaxy Formation
The discovery of a stably rotating disk galaxy in the early universe is the best indicator yet for how galaxies like the Milky Way formed.
Black Hole Duo Flares Right on Time
Astronomers have forecast a flare from a supermassive black hole duo 3.5 billion light-years away.
