Selected as an astronaut candidate by NASA in June 1987, Voss completed a one-year training and evaluation program in August 1988, which qualified him for assignment as a
mission specialist on
Space Shuttle flights. He has worked as a flight crew representative in the area of Shuttle safety, as a
CAPCOM, providing a communications interface between ground controllers and flight crews during simulations and Shuttle flights, and as the Astronaut Office Training Officer. After his third spaceflight, Voss spent two years training at the
Yuri Gagarin Cosmonaut Training Center in
Star City, Russia. He served as a backup to
Michael Foale on the
STS-84/Mir 23/Mir 24/
STS-86 mission and to
Andrew Thomas for the
STS-89/
Mir 24/Mir 25/
STS-91 mission. After his fifth flight, Voss served as the Deputy for Flight Operations in the Space Station Program Mission Integration and Operations Office.
Spaceflight experience STS-44 Voss was a mission specialist on board
Space Shuttle Atlantis during
STS-44 from November 24 – December 1, 1991. The mission's primary objective was the deployment of a
Defense Support Program satellite with an Inertial Upper Stage booster rocket. The crew also conducted two Military Man in Space experiments, three radiation monitoring experiments, and numerous medical tests to support longer duration spaceflight. The mission orbited the Earth 110 times before returning to
Edwards Air Force Base in
California.
STS-53 crew. Voss is second from the right. From December 2–9, 1992, Voss flew as a mission specialist on
STS-53. The 171 orbit flight of the Space Shuttle
Discovery deployed a classified
Department of Defense payload. The satellite was the second launch of a
Satellite Data System-2 military communications satellite.
STS-69 During
STS-69, Voss was a mission specialist and payload commander on board Space Shuttle
Endeavour. The flight, which orbited the Earth 171 times from September 7–18, 1995, successfully deployed a SPARTAN satellite and the Wake Shield Facility. Also on board was the
International Extreme Ultraviolet Hitchhiker Payload as well as various medical experiments. Voss and
Michael Gernhardt performed a six-hour
spacewalk in order to test space suit modifications and to evaluate tools and procedures for future use on the
International Space Station.
STS-101 Voss was a mission specialist on board Space Shuttle
Atlantis on
STS-101. The Shuttle visited the then-unmanned International Space Station and delivered over 3,000 pounds of equipment and supplies. The crew also repaired the Station's electrical and environmental control systems. At the time of the flight Jim was already assigned to fly on
Expedition 2. His crewmates
Yuri Usachev and
Susan Helms flew with him on
Atlantis in order to gain experience for their future long-duration stay. Jim and
Jeff Williams conducted a six-hour spacewalk to finish installation of a Russian crane, replace a faulty antenna, and install handrails on the outside of the station.
STS-102 Voss and his
Expedition 2 crewmates launched as Mission Specialists March 8, 2001, on board Space Shuttle
Discovery during the
STS-102 mission. The primary objectives of the flight were to rotate crew members and to resupply the station using the
Multi-Purpose Logistics Module. Voss participated in one of the missions two spacewalks, along with
Susan Helms, to prepare a Pressurized Mating Adapter for relocation. The spacewalk set a record of 8 hours 56 minutes duration, that withstood until, it was broken by two Chinese astronauts on 17 December 2024.
Expedition 2 during
Expedition 2 Voss,
Susan Helms, and
Yuri Usachev spent 163 days aboard the
International Space Station conducting 18 scientific experiments, maintenance, and outfitting. During the flight, Jim (who was a Flight Engineer) was the first person to operate the Space Station Robotic Manipulator System (
Canadarm2). He also participated in a 19-minute EVA, in which Voss and Usachev prepared a docking probe for the arrival of the
Pirs Docking Compartment. During Jim's stay on the ISS, the space station was visited by two unmanned cargo vehicles, the
Soyuz TM-32 taxi mission, as well as two Space Shuttles (
STS-100 and
STS-104). Voss was also on board to witness the arrival of the
Quest Airlock. He was one of the cinematographers and featured astronauts of the first
3D film shot in space, Space Station 3D. The film was released in theaters in 2002 and on DVD in 2005.
STS-105 Voss returned home from his fifth spaceflight as a mission specialist on board the Space Shuttle
Discovery on August 20, 2001 (
STS-105). The mission saw a crew rotation, two spacewalks, and another flight of the MPLM. ==Post-NASA career==