Scott Kelly age and current status
As of 2025, Scott Kelly is 57 years old. He was born on February 21, 1964, in Orange, New Jersey, and remains alive as a retired NASA astronaut. After leaving NASA in 2016, he has continued contributing to space medicine and public understanding of long-duration spaceflight through speaking and writing. The following profile summarizes key biographical and mission milestones relevant to understanding his age and career context.
Biographical overview
Scott Kelly grew up in New Jersey and pursued a career in the U.S. Navy before joining NASA. His path to becoming a prominent figure in space exploration included test pilot experience and selection as a NASA astronaut candidate. His twin brother, Mark Kelly, who is also a retired NASA astronaut, has enabled important comparative studies in space health research. Both brothers have influenced understanding of human performance in space.
Key missions and dates
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Date of birth | February 21, 1964 | NASA biography, official records |
| First spaceflight: STS-103 | December 1999 | NASA mission archives |
| Expedition 25/26 (ISS) | March 2010 to March 2011 | NASA International Space Station records |
| One-Year Mission (ISS) | March 2015 to March 2016 | NASA, Roscosmos, life sciences publications |
| Retirement from NASA | April 2016 | NASA announcement |
STS-103 (1999)
STS-103 was a Hubble Space Telescope servicing mission launched aboard Space Shuttle Discovery. Kelly served as pilot, gaining early spaceflight experience and contributing to one of Hubble’s most significant servicing operations. The mission exemplified Shuttle capabilities for complex orbital repairs.
Expedition 25/26 (2010–2011)
Kelly commanded the International Space Station during Expedition 26 after serving as a flight engineer in Expedition 25. This long-duration mission provided critical data on living and working in space for extended periods, informing later planning for Mars missions.
One-Year Mission (2015–2016)
The One-Year Mission was a landmark investigation into the physiological and cognitive effects of a full year in microgravity. Kelly and cosmonaut Mikhail Kornienko conducted a series of studies comparing year-long spaceflight effects with shorter missions. Data continue to inform countermeasures for future deep space exploration.
Scientific contributions and research impact
Scott Kelly’s participation in long-duration studies has substantially advanced knowledge of human adaptation to space. Research focused on telomeres, vision changes, bone density, and microbiome shifts. The comparison between Scott and Mark Kelly, derived from their twin status, provided a rare opportunity for genetic and physiological analyses in space medicine.
Public engagement and legacy
Since retiring, Kelly has engaged with audiences through books, interviews, and talks that explain the challenges and rewards of space exploration. He has emphasized the importance of international cooperation and scientific rigor in extending human presence beyond low Earth orbit. His legacy includes both tangible mission accomplishments and the broader cultural impact of long-duration spaceflight.
Frequently asked questions
- How old is Scott Kelly in 2025? He is 57 years old as of 2025, based on his birth date of February 21, 1964.
- When did Scott Kelly become an astronaut? He was selected as an astronaut candidate in 1996 and completed training in 1997.
- What is Scott Kelly’s most notable mission? The One-Year Mission on the International Space Station (2015–2016) is among his most scientifically significant flights.
- Does Scott Kelly have a sibling who is also an astronaut? Yes, his twin brother Mark Kelly is a retired NASA astronaut and former U.S. Senator.
- Is Scott Kelly still involved in space activities? He remains engaged in speaking and advocacy related to space exploration, though officially retired from NASA.
Conclusion
Scott Kelly’s age and career milestones reflect more than personal biography; they highlight the evolution of human spaceflight capabilities and research. From Hubble servicing to yearlong ISS expeditions, his work continues to inform future deep space missions. Verified dates and mission roles underscore the reliability of this profile for long-term reference.