1–20 of 554 results
Viking 1 image of Red Planet

Solar System

Tsunamis Carried Boulders Across Ancient Martian Ocean

Long-ago impacts tossed up the floors of an ancient ocean on the Red Planet and carried debris to the landing site of NASA’s Viking 1 lander.

Merger illustration

Stellar Science

Gamma-ray Burst Surprise: Hybrid Merger Made Magnetar

Gamma-ray bursts are generally thought to come in two flavors — supernovae or neutron star mergers. But discoveries are blurring that line.

Titan

Solar System

New Images Track Clouds on Saturn's Largest Moon

Brand-new images from the James Webb Space Telescope and the Keck Observatory in Hawai'i reveal clouds beneath the haze on this enshrouded moon.

Blazar (art)

Black Holes

X-rays Offer View Inside the Black Hole-Powered Plasma Guns

Polarized X-rays are helping astronomers take a closer look at blazars’ “plasma guns,” the particle jets powered by supermassive black holes.

Infant star and a rainbow of burps

Stellar Science

Webb Telescope Reveals Starbirth in a Riot of Colors

A riot of colors in this James Webb Space Telescope infrared image show the warm glow of a feeding infant star, representing a look back in time at a star very like the Sun.

Supernova in a box in galaxy cluster

Stellar Science

Hubble Spies Supernova in Early Universe

Archival Hubble Space Telescope images taken more than a decade ago have revealed an ancient star in the act of exploding.

Supernova remnant

Stellar Science

Lightest Neutron Star Ever? Maybe, Maybe Not

A team of astronomers claims to have measured the lightest neutron star, but others say extraordinary claims require extraordinary evidence.

an aerial shot of a large cement disc in the midst of trees

Astronomy and Society

National Science Foundation Will Not Rebuild Arecibo

While the NSF plans to establish an educational center at the Arecibo Observatory, the institution has stated it will not fund science there.

misshapen Polymele

Solar System

Winking Stars Help Map Asteroids — and Discover a New Moonlet

An innovative method enables astronomers to gauge the size and shape of a distant asteroid — and potentially any km-scale object in the solar system.

Regular rings of dust surround a brilliant central star

Stellar Science

Dance of Giant Stars Creates Ripples of Dust

Every time two giant stars swing around each other, they enrich the cosmos with complex organic molecules.

DESI map of the universe compared to SDSS

Resources and Education

Watch "Astronomy's Workhorse" in Action

Fly through Sloan Digital Sky Survey data, watch what the team has to do to produce these observations, and see an artistic interpretation of the process and science.

Close-up on glowing Neptune and its gossamer rings

Solar System

Neptune's Rings, Jupiter's “Frosted Cupcakes,” and 3D Views of Mars

Three solar system emissaries have returned beautiful and even interactive vistas of Neptune, Jupiter, and Mars.

Exoplanets

Webb's Exoplanet Data Are Almost Too Good

A new study urges caution in interpreting the chemical fingerprints that Webb is collecting of alien worlds.

Perseverance selfie at Skinner Ridge

Solar System

Perseverance Finds Ancient Habitable Conditions (But Not Yet Life) on Mars

The mission team has reported results from Perseverance's study of the rocks deposited by the river that once flowed into Jezero Crater.

Orion Nebula by Webb

Professional Telescopes

Webb's Dazzling Views of the Orion Nebula

The James Webb Space Telescope has provided its first views of the Orion Nebula, revealing infant stars and the filaments that feed them.

Blazar (art)

Black Holes

Blazar's Outburst Hid Repeating Signal

Pulses originating almost a billion light-years away hint at extreme physics near a supermassive black hole.

Tarantula Nebula in infrared looks more like a cavity surrounded by spider silk

Exoplanets

Webb Captures an Exoplanet, a Brown Dwarf — and a Giant Tarantula

New Webb images reveal the space telescope's first exoplanet, first brown dwarf, and a stellar nursery teeming with activity.

Mauna Kea Observatories panorama

Astronomy and Society

Years of Tensions at Mauna Kea May End with Peaceful Negotiations

New stewardship of Mauna Kea, a dormant volcano that hosts some of the world's largest telescopes, could change the face of astronomy at the summit.

NGC 628 looks like a giant blue-gold maelstrom with a blue middle

Galaxies

Webb Reveals Jupiter, Puffy Planet, and Galactic Maelstroms in a New Light

Round out your week with these stunning views of the universe from the James Webb Space telescope.

Gravitational-wave signal and noise

Astronomy and Society

How Astronomers Are Rendering the Universe in Sound

Presenting data as sound can open new opportunities for accessibility, engagement, and discovery, but the technique still faces challenges.

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