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Astronauts

The term “astronaut” derives from the Greek words meaning “star sailor,” and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond. The term “astronaut” has been maintained as the title for those selected to join the NASA corps of astronauts who make “star sailing” their career profession.

Quick Facts

Since inception, NASA has selected 370 astronaut candidates: 299 men, 61 women; 212 military, 138 civilians; 191 pilots, 159 non-pilots.

Since inception, NASA has selected 370 astronaut candidates: 299 men, 61 women; 212 military, 138 civilians; 191 pilots, 159 non-pilots.

When Expedition 1 arrived at the International Space Station on Nov. 2, 2000, there has been a continuous human presence at the space station since. Today there are usually seven astronauts living on board at any given time, from a variety of countries.

When Expedition 1 arrived at the International Space Station on Nov. 2, 2000, there has been a continuous human presence at the space station since. Today there are usually seven astronauts living on board at any given time, from a variety of countries.

The first class of NASA astronauts was selected in 1959. They are known as the Mercury 7.

The first class of NASA astronauts was selected in 1959. They are known as the Mercury 7.

At the Space Station

NASA astronaut and Soyuz MS-28 Mission Specialist Chris Williams poses for a portrait in his Sokol launch and entry suit at the Gagarin Cosmonaut Training Center in Star City, Russia.

Chris Williams

NASA astronaut and Expedition 73/74 Flight Engineer

Roscosmos cosmonaut and Soyuz MS-28 Commander Sergey Kud-Sverchkov poses for a portrait in his Sokol launch and entry suit at the Gagarin Cosmonaut Training Center in Star City, Russia.

Sergey Kud-Sverchkov

Roscosmos cosmonaut and Expedition 73/74 Flight Engineer

Sergei Mikaev

Roscosmos cosmonaut and Expedition 73/74 Flight Engineer

Latest Astronauts News

Active Astronauts

Eligible for flight assignment.

View of Nicole Mann is posing for photo with Josh Cassada (left) and Frank Rubio (right) both wearing their Extravehicular Mobility Units (EMUs) during Extravehicular Activity (EVA) Preparation Activities in the Quest Airlock (A/L) during Expedition 68.
View of Nicole Mann is posing for photo with Josh Cassada (left) and Frank Rubio (right) both wearing their Extravehicular Mobility Units (EMUs) during Extravehicular Activity (EVA) Preparation Activities in the Quest Airlock (A/L) during Expedition 68.
NASA/Nicole Mann

Training for Artemis ii

Official portrait for Artemis II: Reid Wiseman

Reid Wiseman

Commander

Official portrait for Artemis II: Christina Koch

Christina Koch

Mission Specialist

Official portrait for Artemis II: Jeremy Hansen

Jeremy Hansen

Mission Specialist

Astronaut Appearance Request

The Astronaut Appearances Office in Houston, Texas coordinates and arranges astronaut appearances for astronauts who are actively employed by NASA.

NASA astronauts appear before a variety of groups to inform the public about the U.S. space program. Typically, presentations are made to high schools and universities, community organizations, businesses and associations, or military organizations.

Request Astronaut Appearanceabout Astronaut Appearance Request
NASA astronaut Kayla Barron high-fives a student dressed in a spacesuit costume during a visit to Amidon-Bowen Elementary School in Washington D.C.
NASA’s SpaceX Crew-3 astronauts, from left to right, Raja Chari, Kayla Barron, Mark Vande Hei, and Tom Marshburn answer questions from students during their visit to Amidon-Bowen Elementary School, Thursday, Dec. 8, 2022, in Washington.
NASA/Keegan Barber

Exploration is really the essence of the human spirit.

History

Astronaut Selection

More than 12,000 people applied to be an astronaut between March 2 and March 31, 2020. 

The astronaut selection committee is now in the process of reviewing those applications. NASA expects to announce its selections in mid-2021.

Learn More About Astronaut Selectionabout Astronaut Selection
Houston We Have a Podcast: Astronaut Episodes
(Jan. 10, 2020) — The 2017 Class of Astronauts participate in graduation ceremonies at the Johnson Space Center in Houston, Texas. From left are, NASA astronaut Jonny Kim, Canadian Space Agency (CSA) astronaut Joshua Kutryk, NASA astronaut Jessica Watkins, CSA astronaut Jennifer Sidey-Gibbon, NASA astronauts Kayla Barron, Jasmin Moghbeli, Loral O’Hara, Zena Cardman, Raja Chari, Matthew Dominick, Bob Hines and Warren Hoburg. This is the first class of astronauts to graduate under the Artemis program and are now eligible for assignments to the International Space Station, Artemis missions to the Moon, and ultimately, missions to Mars.

Resources

Astronaut Clay Anderson, Expedition 15 flight engineer, waves to the camera while participating in a session of extravehicular activity (EVA) as construction continues on the International Space Station. During the 7-hour 41-minute spacewalk, Anderson and cosmonaut Fyodor N. Yurchikhin (out of frame), commander representing Russia's Federal Space Agency, installed a television camera stanchion, reconfigured a power supply for an antenna assembly, and performed several get-ahead tasks. Also, while riding on the end of the Canadarm2, Anderson jettisoned the Early Ammonia Servicer (EAS) by shoving it opposite of the station's direction of travel. The station's robotic arm end effector is at left.

NASA Astronaut Fact Book

November, 2024

NASA astronaut and Expedition 72 Flight Engineer Nick Hague pedals on the Cycle Ergometer with Vibration Isolation and Stabilization (CEVIS), an exercise cycle located aboard the International Space Station's Destiny laboratory module. CEVIS provides aerobic and cardiovascular conditioning through recumbent (leaning back position) or upright cycling activities.

Astronaut Health and Training

Learn more about astronaut health and training.

Astronaut Outreach and media resources

Aerial photograph of Johnson Space Center facilities taken from a U.S. Coast Guard H-65 helicopter.

JSC Newsroom

218-483-5111

Courtney Beasley

Public Affairs Specialist

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Shaneequa Vereen

Public Affairs Specialist

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Anna Schneider

Public Affairs Specialist

Keep Exploring

Discover More Topics From NASA

Humans In Space

Spaceships and Rockets

International Space Station News

Stay up-to-date with the latest International Space Station news releases from NASA as we continue research on the orbiting laboratory.

Johnson Space Center

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