Webb Telescope Finds Dwarf Galaxies Lit Up the Early Universe
Faint, small galaxies ionized the opaque fog that obscured the early universe.
Six Sub-Neptunes Discovered 100 Light-Years Away
Astronomers have uncovered six sub-Neptune exoplanets dancing in lock-step around the same distant star, shedding light on their formation.
Webb Shows Planets Really Do Start with Pebbles
New observations have turned up evidence that icy pebbles deliver the water to inner regions of planet-forming disks.
New Forecast Resets Solar Cycle Expectations
A new forecast suggests that sunspot numbers, aurorae, and other solar activity will peak sooner and at a higher level than expected.
Radio Burst Breaks Distance Record, Challenges Theories
A highly energetic fast radio burst, which broke the distance record, provides a crucial test for theories of these events' origins.
In a First, Astronomers Directly Image the Cosmic Web
Astronomers have directly imaged emission from the cosmic web, the filamentary structure that underlies the universe.
Dark Matter Clumps Float Between Galaxies, Data Shows
Astronomers have found clumps of dark matter 30,000 light-years wide in the space between galaxies in the distant universe.
What Mud Cracks Mean for Life on Mars
Mud cracks are evidence for sustained wet-dry cycles on ancient Mars, which might have provided conditions amenable to life (with caveats).
Some Astronomers Claim Dark Star Candidates in Webb Images
Three distant galaxies imaged by the James Webb Space Telescope might actually be "dark stars" powered by dark matter annihilation, claims a team of astronomers.
Perseverance Finds Complex Organics (Not Life) on Mars
NASA's Perseverance has sniffed 10 rock samples and found signatures of organic molecules, a sign of a complex geochemical past.
NASA Panel Talks Unidentified Anomalous Phenomena
NASA has held its first public meeting with its panel investigating Unidentified Anomalous Phenomena. The panel will publish a full report in July.
Distorted Galaxy Hints at the Nature of Dark Matter
Astronomers analyzed the gravitationally lensed image of a distant galaxy to test the nature of dark matter.
What the Discovery of Massive Early Galaxies Could Mean for Cosmology
JWST's detection of early galaxies that are far more massive than astronomers had expected could mean we need to rewrite our understanding of the cosmos.
The Odd Behavior of Interstellar Object 'Oumuamua, Explained
It wasn't aliens after all — an astrochemist and an astronomer have teamed up to explain why the interstellar object 1I/'Oumuamua behaved the way it did.
Water on Earth Might Predate the Solar System
Astronomers studying the water vapor around a newborn star find that it’s chemically similar to ice in solar system comets, a possible source of Earth’s oceans.
What Is the Sun Made Of? New Data Deepens Debate
New data from a detector tucked under a mountain in Italy has shed light on what's inside the Sun.
Webb's Galactic Distance Record Is Now Official
Spectroscopic measurements confirm Webb's distance record, with images revealing galaxies that existed just 330 million years after the Big Bang.
Arecibo Legacy: New Data on Near-Earth Asteroids
The largest set of radar data for near-Earth asteroids will help us understand their origins and protect Earth from future impacts.
Astronomers Map the Milky Way's "Underworld"
A simulated map of the Milky Way shows the location of our galaxy's stellar corpses — and they're not where you might think they'd be.
Betelgeuse's Great Dimming: The Aftermath
The Great Dimming occurred when Betelgeuse coughed out a huge chunk of material, and the ejection took a toll on the giant star.