NASA Opens Astronaut Applications for Artemis Moon Missions and Mars Preparation

NASA is recruiting the explorers who will write the next chapter of human spaceflight.

Applications are now open for the agency’s next astronaut class. These recruits will join NASA as the United States returns to the Moon, establishes a lunar base, and lays the groundwork for the first crewed missions to Mars.

The next generation of astronauts will train for lunar surface operations, long-duration living and working beyond Earth, and missions that will push the boundaries of human exploration farther than ever before.

U.S. citizens interested in joining the astronaut corps have until 11:59 p.m. EST on Thursday, Dec. 3, to submit completed application materials.

“This is an extraordinary time to join NASA’s astronaut corps,” said NASA Administrator Jared Isaacman. “The people we select could walk on the Moon, live and work at a lunar base, and help pioneer the systems and operations that will ultimately carry crews to Mars. Those missions will demand technical excellence, sound judgment, teamwork, and courage. NASA’s astronaut corps has always called on remarkable Americans willing to take on extraordinary challenges in service to the nation. If you are ready to join that tradition, come help write the next chapter of humanity’s greatest adventure.”

NASA expects to finalize its selection in late 2027, with the chosen candidates beginning training shortly thereafter.

“The window is open. The mission is waiting. And the only thing missing from the greatest adventure humanity has ever embarked upon is you,” said NASA Deputy Administrator Matt Anderson.

The agency last opened applications in 2024. From more than 8,000 applicants, 10 astronaut candidates were selected in 2025 and are currently completing nearly two years of training.

“For those who apply, becoming a NASA astronaut is more than a career opportunity,” said Scott Tingle, chief astronaut and chair of the Astronaut Selection Board at NASA’s Johnson Space Center in Houston. “It is a chance to join a legacy of explorers who have pushed the boundaries of discovery and play a role in the missions that will shape humanity’s future in space. The next generation of astronaut candidates could help write history while inspiring future scientists, engineers, and explorers.”

Since the 1960s, NASA has selected 370 people to train as astronaut candidates for increasingly challenging missions. The agency currently has 32 active astronauts, and new selections will join their ranks to study spacewalking, lunar geology, high-performance aircraft operations, and other critical skills.

Basic requirements include United States citizenship and a master’s degree in a STEM field—such as engineering, biological science, physical science, or computer science—from an accredited institution. The master’s degree requirement may also be met by:

• Completion of at least two years toward a doctoral program in an appropriate technical field (engineering, biological science, physical science, computer science, or mathematics).
• Completion of a Doctor of Medicine, Doctor of Osteopathic Medicine, Physician Assistant, Doctor of Nursing Practice, Family Nurse Practitioner, or related medical degree.
• Completion of, or current enrollment in, a nationally recognized Test Pilot School program, provided the program is completed by July 2027. If Test Pilot School is the only advanced technical degree, a bachelor’s degree in a STEM field is required.

Candidates must also have at least three years of related professional experience after completing their qualifying degree.

For pilots, the professional experience requirement may be met through the following flight experience:

• High-performance jet aircraft: 750 hours of pilot-in-command time.
• Other fixed-wing aircraft: 1,500 total flight hours, including 750 hours as pilot in command.
• Rotary-wing aircraft: 1,000 total flight hours, including 300 hours as pilot in command.

For medical doctors, residency training may count toward the professional experience requirement and must be completed by July 2027.

Astronaut candidates must pass NASA’s long-duration astronaut flight physical and demonstrate strong leadership, teamwork, and communication skills.

Since its inception, NASA’s astronaut corps has represented the pinnacle of American ingenuity, skill, and determination, executing missions that achieve the near impossible and expanding humanity’s understanding of Earth, the Moon, and beyond.

As part of a golden age of innovation and exploration, NASA will send astronauts on increasingly complex missions near the lunar South Pole to explore more of the Moon than ever before. Beyond providing economic benefits and advancing scientific discovery through its Artemis missions, NASA will establish an enduring human presence on the lunar surface and build the foundation for the first crewed mission to Mars.

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