1–20 of 32 results
3C 58 supernova remnant

Stellar Science

Three Neutron Stars Reveal Inside Secrets

Astronomers surveyed dozens of neutron stars, homing in on three that challenge most ideas about what these exotic objects are made of.

Illustration of Type Ia supernova origin for the speedy star

Stellar Science

Dwarf Star Caught Speeding; Could Escape the Galaxy

Citizen scientists discovered a star speeding through the Milky Way. Now, astronomers are trying to track down its origins.

massive white star with black hole transiting in front of it

Black Holes

Did This Black Hole Form Without a Supernova?

Some massive stars may collapse completely into black holes — without the fanfare of a supernova.



Planet Candidate Could Be Incandescent with Lava Flows

A new planet candidate discovered in data from NASA's TESS mission could be an extreme lavaworld, pushed and pulled by the gravity of its own star and two other close-in planets.

Pandora's Cluster of galaxies


Webb Telescope Finds Dwarf Galaxies Lit Up the Early Universe

Faint, small galaxies ionized the opaque fog that obscured the early universe.

An artist's representation of the six-planet system on black with multi-color geometrical pattern in the background


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.

Planet-forming disks


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.

Solar System

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.

Fast radio burst illustration

Stellar Science

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.

Diagram showing lensing of quasar light by foreground galaxy and intergalactic dark matter


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.

Tracing mud cracks on Mars


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).

Three red smudges could be distant galaxies or dark stars


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.


Space Missions

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.

a black dot against a grey background with two white lines on either side

Astronomy and Society

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.

Black field spotted with galaxies


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.

Portrayal of 'Oumuamua (1I/2017 U1)

Solar System

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.

Cutaway diagram of protoplanetary disk, which flares out away from star

Solar System

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.

rainbow with black lines marking where different atoms have absorbed wavelengths of light

Solar System

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.