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Space Travel

Humans have continuously lived and worked aboard the International Space Station (ISS) since November 2000.

NASA to Bring ISS Crew Home Early Because of an Astronaut’s Health Issue, Marking the First Medical Evacuation of the Spacecraft

The unnamed crew member is in stable condition after an undisclosed incident on Wednesday, but the agency is bringing them back to Earth for medical testing

Michaela "Michi" Benthaus in the center with her five crewmates

This Aerospace Engineer Just Became the First Wheelchair User to Travel to Space

A brief commercial flight with space tourism company Blue Origin made Michaela “Michi” Benthaus’ childhood dream come true

Time passes by faster on Mars than on Earth.

How to Keep Time on Mars: Clocks on the Red Planet Would Tick a Bit Differently Than Those on Earth

On average, Martian time ticks roughly 477 millionths of a second faster than terrestrial clocks per Earth day. But the Red Planet’s elongated orbit causes the time difference to vary as Mars travels around the sun

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The Astronomical Problem of Space Junk

Chunks of satellites and pieces of debris falling from space are causing trouble down here on Earth

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

The mysterious object found in Western Australia may be part of a Chinese rocket, experts suggest.

Cool Finds

Miners Discovered a Mysterious Smoking Object in Western Australia. Experts Think It’s Likely Unexpected Space Debris

Some theorize that it’s a piece of a rocket—and part of a growing pile of orbiting space junk

SpaceX's Starship test flight launches from Texas.

SpaceX Successfully Launches Giant Starship Rocket’s 11th Test Flight

The company will soon begin testing the third version of its rocket

A coronal mass ejection erupts from the sun in 2013.

How Prepared Are We for a Rare and Powerful Solar Event?

A coronal mass ejection could knock out power and disrupt communication on Earth

Jim Lovell while training for the Apollo 13 mission

Jim Lovell, Apollo 13 Commander Who Thrived Under Pressure, Dies at 97

The space explorer was determined throughout his life, says Teasel Muir-Harmony, the curator of the Apollo Collection at the National Air and Space Museum

Christa McAuliffe in her NASA uniform

Christa McAuliffe’s Life Ended in Tragedy on the ‘Challenger’ Shuttle. Here’s How the High School Teacher Was Chosen for the Ill-Fated Flight

NASA’s “Teacher in Space” added joy to many Americans’ lives and increased excitement for the future of spaceflight, though she never reached her destination

The meteorites could open up a new avenue to understand Mercury, pictured, which is notoriously hard to study due to its proximity to the sun.

Scientists Have Never Confirmed a Meteorite From Mercury. Could These Space Rocks From the Desert Be the First?

Two meteorites found in the Sahara show tantalizing similarities to the innermost planet, and while researchers say they are likely not direct samples, “one cannot rule out” the idea

An illustration shows a satellite damaged by space debris. Objects that don’t burn up in the atmosphere can pose a danger when they fall back to Earth.

With Space Junk on the Rise, Is a Catastrophic Event Inevitable?

Debris from rockets and satellites can fall back to Earth or collide with other objects, and wreckage that burns up can harm the ozone layer

Ispace posted a video of Resilience circling the moon shortly before it lost contact with the lander. 

The Resilience Spacecraft Likely Crashed on the Moon

Early reports suggest that an issue with the Japanese lander’s sensors prevented it from sufficiently slowing down

An artist's rendition of Resilience on the lunar surface, where it is scheduled to touchdown later today. 

Ispace’s Resilience Spacecraft Is Set to Land on the Moon Today—Here’s How to Follow Along

The Japanese company’s second attempt at a lunar landing can be streamed live this afternoon

Noctilucent clouds over the Baltic Sea, as seen from Germany in 2019. Typically seen in polar regions, the clouds are increasingly appearing at mid- and low latitudes.

NASA Wants Your Help to Study These Rare, High-Altitude Clouds That Appear to Glow at Sunrise and Sunset

Noctilucent clouds usually form close to the poles, but in recent decades, they’re being spotted closer to the Equator

An artistic rendering of one of the Voyager probes.

NASA Engineers Revive Long-Dormant Thrusters on Voyager 1, the Farthest Spacecraft From Earth, in a ‘Miracle Save’

In the nick of time, NASA teams addressed clogging issues in the probe’s backup roll thrusters, before the only antenna capable of sending commands to it went offline

The asteroid Donaldjohanson, captured by NASA's Lucy spacecraft on Sunday. 

NASA’s Lucy Spacecraft Just Flew by a Strange, Peanut-Shaped Asteroid. See the New Images From the Approach

The close-up views of asteroid Donaldjohanson are a preview of what’s to come for Lucy on its 12-year quest to study Jupiter’s Trojan asteroids

A rendering of a Sunbird rocket detaching from its station to dock onto an approaching spacecraft.

Fusion Rockets Could Theoretically Cut Our Travel Time to Mars in Half. This U.K. Startup Wants to Give It a Try

The company’s ambitious new Sunbird design aims to harness nuclear fusion in space, despite the fact that commercializing such energy on Earth remains a faraway dream

A 70mm IMAX camera used to shoot The Dream is Alive, now in the National Air and Space Museum's collection

In the 1980s, This Special Camera Helped Turn Astronauts Into Cinematographers to Shoot the First Imax Movie Ever Filmed in Space

The groundbreaking work, “The Dream Is Alive,” celebrates its 40th anniversary this year

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

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