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NASA

Six infrared images of Titan created with data from NASA's Cassini spacecraft

Saturn’s Moon Titan May Not Have an Underground Ocean After All

A new analysis of data from NASA’s Cassini spacecraft may upend Titan’s status as an ocean world. But it might still have pockets of water within a slushy ice layer

David Rankin, operations manager at the Catalina Sky Survey, keeps tabs on space rocks in search of new and potentially hazardous asteroids.

From a Remote Observatory, He’s Defending Our Planet. Get a Glimpse Inside the Life of a Doomsday Asteroid Hunter

David Rankin of the Catalina Sky Survey in Arizona spends nights scanning the solar system for potentially catastrophic space rocks. Here’s what he has to say about that “high consequence” work, an interstellar comet and living with uncertainty

NASA’s Lucy spacecraft, which is investigating a group of asteroids that share Jupiter's orbit around the sun, snapped this image on September 16 as 3I/ATLAS approached Mars. 

Interstellar Comet 3I/ATLAS Is About to Make Its Closest Approach to Earth. Here’s How to View It With Binoculars or a Telescope

On December 19, avid skywatchers can catch a glimpse of the mysterious visitor through powerful binoculars or a telescope when it’s around 170 million miles from our home planet

Supernova remnant Cassiopeia A, which sits within the Milky Way

Astrophysicists Found an Abundance of Odd Elements Essential for Life in the Leftovers of an Exploded Star

The surprisingly high amounts of chlorine and potassium in a supernova remnant could help solve the mystery of where these crucial elements come from

Astronauts Tom Stafford (left) and Wally Schirra (right) demonstrating with two model space crafts during an interview in the 1960s

Sixty Years Ago, When Instruments Were Played in Space for the First Time, It Was ‘Jingle Bells’ All the Way

Astronauts Tom Stafford and Wally Schirra delighted mission control with their rendition of the Christmas classic

An image simulating the contamination from satellite trails in observations by ARRAKIHS, a European Space Agency telescope planned to launch in 2030

More Than 500,000 Satellites Are Set to Orbit Earth by 2040. They May End Up Photobombing the Images Captured by Space Telescopes

Fleets of satellites interfere with snapshots taken by Earth-bound observatories. But a new study suggests these orbiters will also contaminate observations by four space telescopes, including Hubble

The moss spores germinated after enduring space outside of the ISS.

Moss Spores Survived Nine Months Outside the International Space Station. Then, They Grew Normally on Earth

While lunar gardens are still out of reach, the study sheds more light on terrestrial biology that may not be limited to our planet’s surface

This image was captured by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter in October. 

More Than a Dozen NASA Spacecraft Have Glimpsed Interstellar Comet 3I/ATLAS. Now, You Can View New Images That They Captured

The space agency got a close look at the interstellar visitor over the past few months as it zipped by Mars and the sun

The 1999 Leonid meteors as seen from the Leonid Multi-Instrument Aircraft Campaign

Dark Moon, Shooting Stars: How to Catch the Stunning Leonid Meteor Shower This Weekend

A waning crescent moon will offer stargazers an optimal viewing experience this year, with 10 to 15 meteors visible each hour from Sunday into Monday

This glimpse of the northern lights was captured in Missouri on November 11, 2025.

The Sun Erupted With the Year’s Largest Solar Flare This Week, and Space Weather-Fueled Aurora Activity Could Continue

The last in a series of three coronal mass ejections hit Earth on Wednesday, so experts are keeping an eye on geomagnetic storm potential

A clip from Georges Méliès' 1902 short film, A Trip to the Moon

In an Out-of-This-World Observation, a Museum Curator Filmed the Moon Getting Struck by Meteors—Twice

Lunar impacts could affect plans for future bases on the moon

A supermoon in July 2022

November’s Full Beaver Supermoon Peaks on Wednesday—and It Will Be the Year’s Biggest

Supermoons occur when full moons coincide with the moon’s closest position to Earth in its orbit

Sally Ride sitting in the cockpit of a NASA Northrop T-38 Talon training jet at Johnson Space Center, Houston, Texas, 1984

How Far American Women Astronauts Have Soared Since Sally Ride Took Her Historic Spaceflight

In 1978, Ride and five other women became the first group of female astronauts in the U.S. A new book by a longtime curator of spaceflight artifacts explores the nearly five-decade history of women in the space program

Artist Robert Rauschenberg, 1977

How This Legendary Artist’s Obsession With Flight Led Him to Create Stunning Imagery Featuring Spacecraft, Birds and Insects

Ahead of painter Robert Rauschenberg’s centennial this fall, a new book details how he was fueled by looking to the sky

The European Space Agency’s ExoMars Trace Gas Orbiter captured images of 3I/ATLAS on October 3.

A Rare Interstellar Comet Just Flew by Mars—Here Are the Photos Captured by an Orbiting Spacecraft

The images offer the closest view yet of comet 3I/ATLAS, famous for being only the third known interstellar object to pass through our solar system

Comet C/2025 A6 (Lemmon) moves closer to the sun, as captured on October 2.

Here’s How to See Two Comets and a Meteor Shower Light Up the Sky This Month

Skywatchers are anticipating prime viewing conditions for an annual showing of shooting stars and two comet flybys

Saturn’s E ring contains grains of water ice from the underground ocean on its moon Enceladus.

Decades-Old Data From Saturn’s Moon Enceladus Hints at Favorable Conditions for Life

The Cassini spacecraft flew by the small, icy moon in 2008, collecting information that suggests it shoots out molecules that could enable life

Seismic data from marsquakes provide insight into the Red Planet's interior.

How Marsquakes Have Helped Researchers Investigate the Depths of the Red Planet’s Interior

Two recent studies used seismic data from NASA’s retired InSight mission to shed light on what lies beneath Mars’ surface and what it means for the planet’s history

The three missions launched on a SpaceX Falcon 9 rocket the morning of September 24.

‘Ultimate Cosmic Carpool’ Sends Three New Missions to Monitor Space Weather and the Protective Bubble Around Our Solar System

The spacecraft will map the boundaries of the heliosphere, study how Earth’s outer atmosphere reacts to solar activity and provide continuous monitoring of space weather

An artistic rendering depicting dozens of exoplanets

Exoplanet Discoveries Pass the 6,000 Mark, Shedding Light on How Our Solar System Compares With the Rest of the Universe

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data

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