An artist's impression of K2-18b and its distant host star, visualized as if the planet had water and a hydrogen-rich atmosphere.

Chemical Hints on a Distant Planet Offer ‘Strongest Evidence Yet’ for Life Outside Our Solar System, Astronomers Say

The James Webb Space Telescope spotted possible signatures for life in an exoplanet’s atmosphere. Still, researchers caution it’s far too early to call the findings definitive

The far side of the moon—seen here, captured by NASA's Lunar Reconnaissance Orbiter—could be much drier than expected.

The Moon’s Far Side Is Strangely Dry—Lunar Samples Suggest It’s Much More Parched Than the Side That Faces Earth

Chinese researchers analyzed the first-ever soil samples returned from the far side of the moon, but further samples will be needed to verify their findings

Matteo Paz with Caltech President Thomas F. Rosenbaum after winning the Regeneron Science Talent Search award.

High School Student Discovers 1.5 Million Potential New Astronomical Objects by Developing an A.I. Algorithm

The 18-year-old won $250,000 for training a machine learning model to analyze understudied data from NASA’s retired NEOWISE telescope

NASA’s Perseverance Mars rover spotted a large dust devil (on the right) consuming a smaller, fainter twister (on the left in the foreground).

Watch a Spinning Martian Dust Devil ‘Consume’ Another in a New Video Captured by NASA’s Perseverance Rover

Tracking dust devils helps researchers learn more about Mars’ atmosphere, wind and weather conditions

An artist’s impression of ten hot planets similar to Jupiter outside our solar system that scientists have detected. Creative liberties were taken for the colors of the planets, which are currently unknown. The exception is the top-right one, which is known to sport a blue exterior.

From Worlds That Look Like Cotton Candy to Others Covered in Volcanoes, These Are the Strangest and Most Captivating Exoplanets

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most definitely don’t

At the left, an enhanced-color image of Neptune from NASA’s Hubble Space Telescope. At the right, that image is combined with data from NASA’s James Webb Space Telescope to show auroras, represented by cyan coloring.

Check Out Neptune’s Beautiful Auroras, Captured for the First Time by the James Webb Space Telescope

Scientists suspected the ice giant hosted auroras—and had already observed them on Jupiter, Saturn and Uranus. But an observation of Neptune’s lights remained elusive for decades

Saturn's iconic rings are not always clearly visible from Earth.

Saturn’s Rings Have ‘Disappeared’ in an Optical Illusion. Here’s Why We See This Temporary Vanishing Act

Every 13 to 15 years, Earth crosses through Saturn’s “ring plane,” making the gas giant’s most iconic feature become nearly invisible

In 2013, the Curiosity rover drilled this hole, which measures about 0.6 inches wide and 2.6 inches deep, into martian rock. The sample is now thought to contain long-chain organic molecules.

Curiosity Rover Discovers Largest Organic Compounds Ever Found on Mars, a Possible Sign of Ancient Life

The molecules may be remnants of fatty acids, which form cell membranes in Earth’s organisms, though they might have formed through a non-biological process

A mosaic of galaxies captured by Euclid as part of its first observations of the deep field areas

The First Big Data Drop From the Euclid Space Telescope Unlocks a ‘Treasure Trove’ of Insights on the Universe’s Mysteries

The European Space Agency’s “dark universe detective” discovered millions of new galaxies and offers potential clues about dark matter

The Crew-9 members—Butch Wimore, Nick Hague, and Suni Williams of NASA and Roscosmos cosmonaut Aleksandr Gorbunov—stand inside the vestibule between the ISS and their spacecraft on February 19.

After Nine Months in Space, the Starliner Astronauts Are Finally Coming Home. Here’s How to Watch Live

Suni Williams and Butch Wilmore are making a 17-hour journey from the International Space Station and will splash down near Florida this evening

A "diamond ring" appears around the Earth, as seen by the Blue Ghost lander on the moon.

See Last Week’s Stunning Eclipse From the Moon in Photos Captured by the Blue Ghost Lander, Now at the End of Its Mission

The spacecraft carried out the longest commercial operation on the moon to date—and also made history during its rare chance to document this celestial event

Astronaut Ed White conducts the first U.S. spacewalk on June 3, 1965

Two Trailblazing Spacewalks in 1965 Opened the Door to Decades of Astronauts Pushing the Limits of Their Capabilities

Since those early steps, extravehicular activity has helped provide the solutions to many problems that astronauts face in space

A NASA image of Florida in 1992. Coastal communities are most the vulnerable to the effects of sea level rise.

Sea Levels Rose More Than Expected in 2024, According to a NASA Analysis

Ocean warming and thus thermal expansion played a major role in last year’s increase

Mars and Deimos viewed by Hera's Hyperscout H

Check Out These Rare Images of Deimos, One of Mars’ Mysterious Moons

The spacecraft Hera’s photographs are some of the few visuals ever captured of the Martian moon’s dark side

The two astronauts have been helping with ongoing research and maintenance, assisting with experiments on everything from space agriculture to physical health studies in microgravity.

Why NASA and SpaceX’s Mission to Relieve Starliner Astronauts Is Delayed Again

After an unexpected nine months in orbit, astronauts Suni Williams and Butch Wilmore are waiting for the arrival of Crew-10 before they head home. That launch is now expected for Friday

The new SPHEREx telescope and PUNCH satellites took off aboard a Falcon 9 rocket on March 11.

NASA’s New Space Telescope Launches to Explore the Origins of the Universe After a Series of Delays

Called SPHEREx, the instrument will map 450 million galaxies and search for water molecules that may be clinging to space dust

Greenhouse gas emissions will decrease the amount of satellites that can safely orbit Earth, according to a new study.

Climate Change Might Increase Satellite Collisions, Limiting How Many Can Safely Orbit Earth, Study Finds

Greenhouse gas emissions could reduce drag in the upper atmosphere, leaving more space debris in orbit and making satellites more vulnerable to damage, according to new research

The Palos Verdes Peninsula in Los Angeles experiences slow-moving landslides that accelerated last fall, according to recent research.

Parts of California Are Sinking, and It Could Worsen the Effects of Sea-Level Rise, NASA Study Finds

The ground in many parts of the state—including Los Angeles, San Francisco and the Central Valley—is subsiding due to groundwater withdrawal, landslides and compacting of sediment

Blue Ghost captured its first lunar sunrise, marking the beginning of its operations.

See the Striking New Images From the Blue Ghost Lunar Lander, Now the Second Private Spacecraft to Touch Down on the Moon

Firefly Aerospace’s lander reached lunar soil early Sunday morning, after a 2.8-million-mile journey lasting 45 days

Athena launched aboard a SpaceX Falcon 9 rocket from Kennedy Space Center on Wednesday.

Athena Spacecraft Launches to the Moon, as Intuitive Machines Aims for Historic Second Lunar Landing

The American company achieved the first successful moon landing by a private spacecraft last year. Now, it has sent a new mission to the south pole, carrying science instruments for NASA

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