The A4H

We are a diverse group of enthusiastic future astronauts representing more than two dozen disciplines in science, engineering, and medicine. Located in the United States, Canada, and Europe, we can handle a wide range of missions in different geographic regions. Contact us to see what we can do for you!

Flight Members by the Numbers:
Number: 19 Average Age: 33 Nationalities: 11 Languages: 16
BS Degrees: 20 MS Degrees: 19 Doctorates: 10 Students: 5
Pilots: 9 Zero-G Trained: 7 High-G Trained: 8 SCUBA Trained: 12
Astronaut Applicants: 8 (with 7 advanced to upper-stages)

Altman | Corbin | Crowell | Dahlin | Ferrone | Govrin | Guerra | Howard | Hurtado
Lehnhardt | Palaia | Reimuller | Saraiva | Seedhouse | Shiro
Taylor | Unuvar | Zagadailov | Zea

Christopher Altman - Chief Science Officer
Born: 1977
Nationality: United States (lives in The Netherlands)
Occupation: Graduate Fellow
Education: BA, MS, PhD (IP) Applied Physics
Hypobaric Training: NASA-JSC, NASTAR
Centrifuge Training: NASTAR
Microgravity Flights: 1 (20 parabolas)
Flight Experience: Private (glider)
SCUBA: Open Water (IP)
Languages: English, Japanese, Dutch, French
Email: christopher.altman at astronauts4hire.org
Christopher's full biography
Ben Corbin - Public Relations Officer
Born: 1986
Nationality: United States
Occupation: Student
Education: BS, MS, MS, PhD (IP) Aeronautics & Astronautics, Planetary Science
Microgravity Flights: 2 (37 parabolas)
Flight Experience: Private pilot
SCUBA: Open Water
Analog EVAs: approx. 30 hours of EVAs
Languages: English
Email: ben.corbin at astronauts4hire.org
Ben's full biography
Jim Crowell - Chief Financial Officer
Born: 1989
Nationality: United States
Occupation: Student
Education: BS (IP) Earth & Space Exploration
Languages: English, Spanish
Email: jim.crowell at astronauts4hire.org
Jim's full biography


Dr. Jon-Erik Dahlin
Born: 1977
Nationality: Swedish
Occupation: applied physics, engineering, and education consultant
Education: BS, MS, PhD Plasma Physics
Astronaut Applicant: ESA 2008 (Interviewee)
Flight Experience: Private pilot
SCUBA: CMAS 3 stars/Dive Master
Languages: Swedish, English, French
Email: jonerik.dahlin at astronauts4hire.org
Jon-Erik's full biography
Kristine Ferrone
Born: 1983
Nationality: United States
Occupation: Space Vehicle Concept Design
Education: BS, MBA, MS, MS Astrophysics, Sports Medicine, Space Architecture
Astronaut Applicant: NASA 2008
Centrifuge Training: NASTAR
Hypobaric Training: NASTAR
Flight Experience: Private pilot (65 hours)
SCUBA: Advanced Open Water
Analog EVAs: 17 hours, 27 minutes on 7 EVAs
Languages: English
Email: kristine.ferrone at astronauts4hire.org
Kristine's full biography
Amnon I. Govrin - Chief Technology Officer
Born: 1973
Nationality: Israeli (lives in the United States)
Occupation: Program Manager
Education: BS Electrical Engineering
Centrifuge Training: NASTAR
Hypobaric Training: NASTAR
Languages: Hebrew, English
Email: amnon.govrin at astronauts4hire.org

Dr. Melania Guerra
Born: 1978
Nationality: Costa Rican (lives in the United States)
Occupation: Postdoctoral Researcher
Education: BS, MS, PhD Oceanography
SCUBA: Open Water, Scientific Diver
Languages: Spanish, English, German, French
Email: melania.guerra at astronauts4hire.org
Melania's full biography


Dr. Mindy Howard
Born: 1965
Nationality: United States, Dutch (lives in The Netherlands)
Occupation: Sustainable Development Manager
Education: BS, MS, PhD Industrial Engineering
Astronaut Applicant: 1994, 1998, 2003, 2008 (Highly Qualified each time)
Centrifuge Training: NASTAR
Hypobaric Training: NASTAR
SCUBA: Open Water
Languages: English, Dutch
Email: mindy.howard at astronauts4hire.org
Mindy's full biography
Dr. José Miguel Hurtado, Jr.
Born: 1974
Nationality: United States
Occupation: Associate Professor; Licensed Professional Geologist (Texas)
Education: BS, MS, PhD Geology
Astronaut Applicant: NASA 2003, NASA 2008 (Interviewee)
Centrifuge Training: NASTAR
Hypobaric Training: NASTAR
Flight Experience: Private pilot
Languages: English, Spanish
Email: jose.hurtado at astronauts4hire.org
José's full biography
Dr. Kris Lehnhardt - Chief Medical Officer
Born: 1976
Nationality: Canadian (lives in the United States)
Occupation: Assistant Professor and Emergency Medicine Physician
Education: BS, MD Emergency Medicine
Astronaut Applicant: CSA 2008 (top 200)
Centrifuge Training: DRDC
Flight Experience: Private pilot
SCUBA: Open Water
Languages: English, French
Email: kris.lehnhardt at astronauts4hire.org
Kris's full biography
Joseph Palaia - Secretary
Born: 1979
Nationality: United States
Occupation: Entrepreneur
Education: BS, MS Electrical & Nuclear Engineering
Analog EVAs: 16 hours, 19 minutes on 6 EVAs
Languages: English
Email: joseph.palaia at astronauts4hire.org
Joseph's full biography


Dr. Jason Reimuller - Chief Operating Officer
Born: 1972
Nationality: United States
Occupation: President, Integrated Spaceflight Services
Education: BS, MS, MS, MS, PhD Aerospace Engineering, Aviation, Physics
Centrifuge Training: NASTAR
Hypobaric Training: NASTAR
Flight Experience: Private pilot, multi-engine, instrument-rated
Microgravity Flights: 2 (80 parabolas)
SCUBA: Divemaster
Languages: English, Spanish, Russian
Email: jason.reimuller at astronauts4hire.org
Jason's full biography
Dr. Luís M. R. Saraiva
Born: 1980
Nationality: Portuguese (lives in the United States)
Occupation: Neuroscientist
Education: BS, MS, PhD Biology & Genomics
Astronaut Applicant: ESA 2008 (Interviewee)
Analog EVAs: 23 hours, 46 minutes on 10 EVAs
Languages: Portuguese, Spanish, English, German
Email: luis.saraiva at astronauts4hire.org
Luís' full biography

Dr. Erik Seedhouse - Training Officer
Born: 1964
Nationality: Norweigian, Canadian (lives in Canada)
Occupation: Author, Consultant, Coach
Education: BS, MS, PhD Aerospace Medicine & Sports Science
Astronaut Applicant: CSA 1992, CSA 2008 (Finalist)
Centrifuge Training: DRDC
Hypobaric Training: DRDC
Microgravity Flights: 30 parabolas (ESA)
Flight Experience: Private pilot (140 hours)
SCUBA: Divemaster
Languages: Norwegian, English
Email: erik.seedhouse at astronauts4hire.org
Erik's full biography
Brian Shiro - Chief Executive Officer
Born: 1978
Nationality: United States
Occupation: Geophysicist
Education: BA, MA, MS Physics, Geology, Earth & Planetary Science, Space Studies
Astronaut Applicant: NASA 2008 (Highly Qualified)
Centrifuge Training: NASTAR
Hypobaric Training: NASTAR
SCUBA: Advanced Open Water, Rescue
Microgravity Flights: 2 (80 parabolas)
Analog EVAs: 53 hours, 55 minutes on 20 EVAs
Languages: English, German
Email: brian.shiro at astronauts4hire.org
Brian's full biography
Alli Taylor
Born: 1983
Nationality: United States
Occupation: Systems Engineer
Education: BS Space Science, MS Space Studies
Astronaut Applicant: NASA 2008, 2012
Centrifuge Training: NASTAR
Hypobaric Training: NASTAR
Microgravity Flights: 2 (30 parabolas)
Languages: English
Email: alli.taylor at astronauts4hire.org
Alli's full biography
Dr. Cosan Unuvar
Born: 1978
Nationality: Turkish (lives in the United States)
Occupation: materials science and microgravity research consultant
Education: BS, PhD Materials Science
Hypobaric Training: NASA-JSC
Microgravity Flights: 16 (320 parabolas)
Languages: Turkish, English, German
Email: cosan.unuvar at astronauts4hire.org
Cosan's full biography

Dr. Pavel Zagadailov
Born: 1980
Nationality: Moldovan (lives in the United States)
Occupation: physician and biomedical researcher
Education: BS, MD General Medicine OB/GYN & Biochemistry
Flight Experience: Helicopter pilot (500 hours)
Languages: Russian, Romanian, English, German
Email: pavel.zagadailov at astronauts4hire.org
Pavel's full biography

Luis Zea
Born: 1981
Nationality: Guatemalan (lives in the United States)
Occupation: Student
Education: BS, MS, PhD (IP) Bioastronautics
SCUBA: Open Water
Analog EVAs: many
Languages: Spanish, English, German, Portuguese
Email: luis.zea at astronauts4hire.org
Luis's full biography

analog = simulated space missions in analog environments (e.g., Desert RATS, MDRS, FMARS, Atlantica)
EVA = extra-vehicular activity
IP = in progress
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