Astronomy

Uranus with its rings and moons, showcasing storms and a polar ice cap on the planet. The new Webb image was produced by combining longer and shorter exposures.

See the James Webb Telescope's Stunning New Image of Uranus With Its Rings and Moons Clearer Than Ever

The gleaming ice giant could soon become a top priority for exploration

An artist's rendering of one of the Voyager spacecrafts.

NASA's Voyager 1 Is Glitching, Sending Nonsense From Interstellar Space

The aging spacecraft, launched in 1977, is transmitting a gibberish pattern of ones and zeros back to Earth

Saturn's moon Enceladus, represented in a composite of several images taken by NASA's Voyager 2 probe

Life-Sparking Gas Strengthens Evidence That Enceladus, a Moon of Saturn, Could Be Habitable

Evidence of hydrogen cyanide in data from the Cassini spacecraft adds to a growing list of molecules that could, in theory, support life on the icy moon

The supernova remnant Cassiopeia A, captured by NASA's James Webb Space Telescope in near-infrared light. The image shows the expanding material from the blast colliding with gas released by the star before the explosion.

James Webb Telescope Captures Image of Supernova That 'Absolutely Shattered' a Star

The new image gives astronomers a near-infrared look at the stellar explosion called Cassiopeia A, located around 11,000 light years away from Earth

The consellation Orion and other stars in the sky in Alberta, Canada, in 2019.

An Asteroid Will Eclipse a Red Star in the Constellation Orion Monday Night

In the U.S., the rare event will only be visible from southern Florida, but it will be livestreamed from Italy for viewers everywhere

The Geminids appear to originate from the Gemini constellation, but you can see them throughout the night sky.

How to Watch the Geminid Meteor Shower This Week

The celestial spectacle will peak on December 13 and 14, lighting up the night sky with as many as 120 shooting stars per hour

For the inner four planets in this solar system, each planet orbits the sun three times for every two orbits of the planet immediately to its outside. For the fourth, fifth and sixth planets, they orbit four times for every three orbits of its outer neighbor.

Astronomers Discover Rare Solar System Where Planets Orbit in Mathematical Harmony

The "resonant" planets could provide insight about how such systems form and evolve—and why our own solar system is not synced up

Half a century on, Kohoutek may be due a little more respect. Though it disappointed the media and the public, it proved to be a bonanza for serious scientists.

The 'Comet of the Century' Failed to Impress, but It Wasn't Such a Disaster After All

Highly anticipated before its arrival in late 1973, Kohoutek became an interplanetary punchline. But astronomers may have gotten the last laugh

A new musical piece is based on this composite image of the center of the Milky Way. The bright spot on the right is hot gas in infrared light, marking the approximate location of the galaxy's supermassive black hole.

Listen to the Center of the Milky Way Translated Into Sound

A new musical composition represents data from three NASA telescopes as a piece that was performed by an orchestral ensemble

The Leonids appear to originate from the constellation Leo, but you can see them throughout the night sky.

How to Watch the Dazzling Leonid Meteor Shower This Weekend

The celestial spectacle has been ongoing since the beginning of the month, but it will peak Friday night into early Saturday morning

Astronauts Jasmin Moghbeli and Loral O’Hara were performing routine maintenance during a spacewalk outside the ISS when they lost the tool bag.

Astronauts Lost a Tool Bag During a Spacewalk—and You Can See It Floating From Earth

The bag slipped away while Jasmin Moghbeli and Loral O’Hara were performing routine maintenance on the International Space Station

The James Webb Space Telescope's first image of Saturn.

Saturn's Rings Will Temporarily Disappear From View in 2025

From Earth’s perspective, we’ll be looking at the gas giant’s rings edge-on, making them nearly impossible to see

The galaxy cluster Abell 2744, which lies in front of the galaxy containing the newly discovered black hole

Astronomers Spot the Oldest Black Hole Ever Seen, Shedding Light on the Early Universe

Dating to just 470 million years after the Big Bang, the ancient cosmic structure could help researchers understand how the first black holes formed

Euclid's image of the Perseus Cluster, a group of galaxies 240 million light-years from Earth. The view includes about 1,000 galaxies in the cluster, with more than 100,000 additional ones in the background.

See the First Dazzling Images From the Euclid Space Telescope

The European Space Agency's observatory will map one-third of the sky over six years in a mission to understand the universe's dark matter and dark energy

The asteroid sample that is now on display at the National Museum of Natural History. By studying the retrieved space rocks, scientists aim to better understand how water and organic material first arrived on Earth.

How to See NASA's Bennu Asteroid Sample in Person

A tiny piece of the space rock made its public debut at the Smithsonian National Museum of Natural History, as scientists study the rest of the sample

The pair of asteroids, captured by NASA's Lucy spacecraft on November 1, 2023, from around 270 miles away.

NASA Finds a Surprise Second Asteroid During a Flyby Mission

While testing its tracking system, the agency's Lucy spacecraft discovered that Dinkinesh is not one space rock, but two

The four telescopes of the Very Large Telescope in Chile. Researchers used them to search for the source of the fast radio burst.

Astronomers Find Powerful 'Fast Radio Burst' That Traveled for Eight Billion Years

The strong blast of radio waves is the oldest known, and it could tell scientists more about the mysterious matter that lies between galaxies

An image of Pluto taken by the New Horizons spacecraft in 2015

A Supervolcano on Pluto May Have Spewed Ice Just a Few Million Years Ago

An unusual crater on the dwarf planet hints at past volcanic activity—and a possible vast ocean beneath its surface, scientists say

Previous analyses of seismic activity on Mars suggested its core was surprisingly large, with a low density. Two new studies suggest the opposite.

Mars' Core May Be Smaller Than Thought, Wrapped in a Sea of Molten Rock

Based on seismic waves from a meteorite impact, two teams of scientists suggest the Red Planet has another layer deep beneath its surface

A photograph of the moon by the Apollo 17 crew on their return trip back to Earth. The new study analyzes material gathered from the lunar surface during the 1972 mission.

The Moon Is 40 Million Years Older Than Thought, Lunar Rock Samples Suggest

A new analysis of crystals from the moon pushes its age back to just 110 million years after the solar system formed

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