Astronauts

Jared Isaacman takes the first commercial spacewalk.

Astronauts Achieve First-Ever Private Spacewalk on Polaris Dawn Mission

This morning, tech billionaire Jared Isaacman opened the hatch on a SpaceX Dragon capsule in Earth orbit, as cheering erupted on a livestream

Boeing Starliner's capsule Calypso deploys parachutes during its descent toward Earth late at night on September 6.

Boeing's Starliner Lands Successfully, but Without Its Astronauts on Board

The troubled spacecraft conducted a “bull's-eye landing,” but NASA officials still say they made the right decision to leave its astronauts on the ISS out of an abundance of caution

Boeing's Starliner spacecraft is seen docked at the ISS. After helium leaks and thruster issues, the craft will make an uncrewed return to Earth.

NASA's Starliner Astronauts Will Return on SpaceX Craft in February, Turning an Eight-Day Mission Into Eight Months on the ISS

Boeing’s Starliner spacecraft no longer meets safety standards after experiencing technical issues in June, and it will return to Earth uncrewed, the space agency announced

The Polaris Dawn crew at the Kennedy Space Center, from left to right: Anna Menon, Scott Poteet, Jared Isaacman and Sarah Gillis.

Groundbreaking Mission Attempting the First Private Astronaut Spacewalk Will Target Tuesday Launch

Polaris Dawn is set to be the farthest humans have traveled from Earth since the Apollo program and will test new technology in a "radiation belt" surrounding our planet

Humans couldn't survive outdoors on Mars for a number of reasons, including its extremely low temperatures. Scientists are studying ways to terraform the planet to make it more hospitable.

Humans Could Warm Up Mars for Space Travelers by Spraying Tiny Metal Rods Into Its Atmosphere

Researchers propose a new technique for making the Red Planet more habitable by engineering heat-trapping nanoparticles from Martian dust

NASA’s Boeing Crew Flight Test astronauts Butch Wilmore and Suni Williams on the International Space Station on June 13.

NASA Astronauts Launched on Eight-Day Mission Might Have to Remain on the ISS Until February

After technical issues on Boeing's Starliner spacecraft, the space agency says it's considering bringing the astronauts back to Earth on a SpaceX Crew Dragon instead

Apollo 11 astronauts watched the Earth rise above the moon’s horizon on July 20, 1969.

Apollo Astronauts Left American Flags, Boots and Even Poop on the Moon. Here's Why These Artifacts Matter

Fifty-five years after the first human lunar landing, scholars and experts are looking to preserve the past as more nations and companies undertake moon missions

A pit in the Sea of Tranquility, captured by NASA's Lunar Reconnaissance Orbiter.

Scientists Find an Underground Cave on the Moon That Could Shelter Future Explorers

Such caves could serve as lunar bases during upcoming missions, protecting astronauts against cosmic radiation and extreme temperatures

A prototype of the system for collecting the astronauts' urine. In the future, astronauts may go on longer spacewalks that will require them to carry more drinking water.

Spacesuit Prototype Turns Pee Into Drinking Water

The system is inspired by the stillsuits for collecting moisture in the science fiction epic <em>Dune</em>

The International Space Station, as seen from the Space Shuttle Discovery in 2007.

NASA Will Pay SpaceX Up to $843 Million to Destroy the International Space Station

After the end of this decade, the company will guide the aging laboratory into the Pacific Ocean, where many retired spacecrafts have been deposited

An illustration of debris and satellites in the geostationary ring around Earth.

ISS Astronauts Forced to Briefly Take Shelter as Russian Satellite Suddenly Breaks Up in Orbit

Officials are unsure why the satellite fractured unexpectedly, splintering into nearly 200 pieces

An illustration of the Boeing CST-100 Starliner spacecraft, currently docked to the International Space Station as engineers troubleshoot helium leaks and thruster issues.

Starliner Astronauts Will Remain on Space Station Until July Amid Technical Issues

NASA and Boeing have delayed the crewed mission's return to Earth again, as engineers assess helium leaks and a thruster issue on the spacecraft's service module

Purple squares illustrate auroras on Mars, as detected by NASA&rsquo;s MAVEN orbiter between May 14 and May 20. The brighter the purple, the more auroras present.

Mars Was Hit With a Solar Storm Days After Earth's Aurora Light Show, NASA Says

Studying this event could hold lessons for scientists about how to protect astronauts from radiation on future trips to the Red Planet

Geoscientist&nbsp;Sian Proctor (left) and physician assistant&nbsp;Hayley Arceneaux (right) on the Inspiration4 mission, a three-day tourist trip to Earth orbit in 2021.

Scientists Release Largest Trove of Data on How Space Travel Affects the Human Body

A collection of 44 new studies, largely based on a short-duration tourist trip in 2021, provides insight into the health effects of traveling to space

Taken in December 1968 during NASA&#39;s Apollo 8 mission, William Anders&#39; iconic &quot;Earthrise&quot; photograph galvanized environmental movements and inspired people on Earth.

William Anders, NASA Astronaut Who Captured Iconic 'Earthrise' Photograph, Dies at 90

The Apollo 8 lunar module pilot also served in the U.S. Air Force and worked extensively on nuclear energy projects

Ed Dwight celebrates after landing back on Earth following Sunday morning&#39;s ten-minute flight to space.

Ed Dwight, the First Black Astronaut Candidate in the U.S., Finally Travels to Space at 90 Years Old

The former Air Force pilot trained to become an astronaut in the 1960s but was never selected by NASA. On a Blue Origin flight Sunday, he became the oldest person to go to space

Bruce McCandless floats freely in space with Earth 170 miles beneath him.

The Inside Story of the First Untethered Spacewalk

On February 7, 1984, astronaut Bruce McCandless ventured out into space and away from shuttle Challenger using only a nitrogen-propelled, hand-controlled backpack

Ellen Ochoa was awarded the Presidential Medal of Freedom at the White House last week, becoming the tenth astronaut to receive the country&#39;s highest civilian honor.

Ellen Ochoa, Former NASA Astronaut and First Hispanic Woman in Space, Receives Presidential Medal of Freedom

The former Johnson Space Center director logged four space shuttle flights and 1,000 hours in orbit over her 30-year career

Astronauts could run around the interior walls of cylindrical homes on the moon.

Could Running Around a 'Wall of Death' Help Astronauts Stay in Shape on the Moon?

Short sprints on these cylindrical structures, long used by daredevil motorcycle riders, might promote muscle mass and bone density in low-gravity conditions

Aboard the International Space Station, astronauts experience near-weightlessness&mdash;and fluid accumulates in their heads as a result, which could potentially be one cause of headaches.

Most Astronauts Experience 'Space Headaches' While on the ISS, Study Finds

Surveys of 24 astronauts who traveled to the International Space Station found that nearly all of them reported headaches, and many of these occurred past the first week in space

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