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Outer Space

Astronauts Neil Armstrong (left) and David Scott (right) greet well-wishers at Naha Air Base in Okinawa, Japan, shortly after the Gemini 8 spacecraft spun out of control.

These Never-Before-Seen Photos Show Astronaut Neil Armstrong Relaxed and Smiling After He Almost Died in the Gemini 8 Emergency

Few members of the media were at the unexpected arrival site. Military police officer Ron McQueeney was one of the few photographers who documented the occasion

Mars' surface as captured by NASA’s Ingenuity Mars Helicopter in 2023. The agency's new Mars helicopters will be modeled on this device.

NASA Aims to Launch the World’s First Planet-Hopping Spacecraft Powered by Nuclear Fission

The agency wants the mission to head to Mars by the end of 2028

Illustration of L98-59d (lower left) orbiting its host star, a red dwarf

Scientists May Have Discovered a New Type of Planet Beyond the Solar System. The Catch? It Smells Like Rotten Eggs

L98-59d seems to be a molten planet with an atmosphere full of hydrogen sulfide

The suspected meteorite landed in an upstairs bedroom of a Houston-area home.

This Suspected Meteorite Tore Through the Roof of a Suburban Houston Home

A bright meteor streaked across the afternoon sky and exploded over southeast Texas this weekend

The researchers used sound waves to levitate tiny glass spheres as part of their study. 

Scientists Make a Major Breakthrough in Solving a Hair-Raising Mystery About Static Electricity

The findings can help explain the physics behind phenomena like volcanic lightning

An artist’s illustration of the exoplanet HD 219134 b, a rocky world about 21 light-years from Earth. This scorching planet, which orbits extremely close to its host star, might have a partially molten surface and volcanoes.

Alien Life Could Look Nothing Like What We Expect. Here’s How Microbes Beyond Earth Might Live Without Liquid Water

Like the lead character of “Project Hail Mary,” some scientists are proposing ways that life might exist beyond a star’s “habitable zone,” often considered the gold standard of potential livability

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A Meteor Streaked Across the Morning Sky as a Dazzling ‘Fireball’ Before Exploding With a Thunderous Boom Above Ohio

A six-foot-wide, seven-ton asteroid caused the rare celestial spectacle

Like Astrophage, the solar-radiation-eating microbes in Andy Weir’s novel Project Hail Mary, some sea slugs can derive energy from sunlight.

These Sea Slugs Can ‘Eat’ Sunlight—but They’re No Astrophage. Here’s How the ‘Project Hail Mary’ Antagonist Has a Real-Life Analogue in Earth’s Oceans

By snatching chloroplasts from algae, animals called sacoglossans produce their own energy through photosynthesis

The asteroid Ryugu imaged by the Hayabusa 2 spacecraft in 2018

Life’s Genetic Code Requires Five Key Ingredients. The Asteroid Ryugu Has All of Them, a New Study Suggests

The findings further hint that space rocks may have brought the building blocks of RNA and DNA to Earth long ago

The mice spent about a month aboard the International Space Station.

These Space-Faring Mice Are Helping Scientists Figure Out How to Keep Astronauts’ Muscles Working Properly

A new study suggests a gravity threshold for maintaining muscle function

An artist's conception of a magnetar surrounded by a wobbly accretion disk

Astronomers Witnessed the Birth of a Magnetar for the First Time. It Explains the Mysterious Flickering of an Ultrabright Supernova

New research suggests that the highly magnetized remnants of stars are responsible for powering some of the universe’s most brilliant supernova explosions

The Van Allen Probes spent seven years studying two donut-shaped rings of radiation around the Earth.

A 1,300-Pound Spacecraft Might Be Plummeting Through Our Atmosphere Right Now

The debris poses minimal risk of harming anyone

Dimorphos, on the lower right, surrounded by debris moments after DART's collision in September 2022. The asteroid's larger companion, Didymos, is on the left. 

NASA’s Asteroid-Smashing DART Mission Changed a Space Rock’s Orbit Around the Sun, Marking a First for Humanity

Studying the 2022 collision’s effects can help scientists protect the Earth from celestial objects that might head toward us

NASA Administrator Jared Isaacman and other officials announced major changes to the Artemis program.

Why NASA’s Artemis 3 Mission Isn’t Sending Astronauts to the Moon Anymore

The mission’s goals have changed, and Artemis 4 will be the first lunar landing attempt. Four missions are tentatively scheduled within the next three years

CDG-2 as seen by the Hubble Space Telescope

Astronomers Spotted a Galaxy That’s Made Up Almost Entirely of Dark Matter

The researchers found the galaxy thanks to the Hubble Space Telescope

An artistic rendering of the 'inside out' solar system

Astronomers Discover an Exoplanet in the Wrong Place, Hinting at a Planetary System That Was Born ‘Inside Out’

A rocky planet was found orbiting its host star in an unusual location

An artist's rendition of an imploding star, surrounded by expelled gas and dust shown in red

A Star Suddenly Brightened, Then Faded Into Darkness. Astronomers Say It May Have Turned Into a Black Hole

If confirmed, this disappearing act might provide the closest and best observational evidence for the birth of a black hole

Luna 9's landing was a pivotal moment in history.

Scientists Say They May Have Found a Long-Lost Lunar Lander—the First to Successfully Touch Down on the Moon 60 Years Ago

Data from a NASA lunar orbiter has helped researchers deduce two potential locations for a defunct Soviet spacecraft called Luna 9

Lab-made cosmic dust on a chip

Physicists Create Homemade Cosmic Dust, Which Could Help Them Figure Out How the Building Blocks of Life First Reached Earth

Cosmic dust normally comes from dying stars. The recipe for a lab-made version includes a few gases, vacuum tubes and electricity

An artist's impression of an asteroid

An Asteroid Might Slam Into the Moon in 2032—and Create a Fiery Flash That’s Visible to Earthlings, New Research Suggests

Currently, NASA estimates that asteroid 2024 YR4 has a 4.3 percent chance of hitting our lunar companion

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