Gemini 7
Long-duration Gemini flight that hosted first crewed space rendezvous.
Gemini 7, also known as Gemini VII, was a NASA human spaceflight that took place in 1965 as part of the Gemini program. It marked the fourth crewed Gemini mission, the thirteenth crewed American spaceflight, and the twenty-first crewed spaceflight overall when counting Soviet missions and X-15 flights that crossed the Kármán line. Astronauts Frank Borman and Jim Lovell spent almost 14 days in orbit, completing 206 revolutions around Earth. Their spacecraft acted as the stationary target for the first crewed space rendezvous, which was carried out by the Gemini 6A crew.
The mission was originally scheduled to fly after Gemini 6, but that earlier flight was canceled when its Agena Target Vehicle failed during launch. Because the rendezvous objective was considered critical, NASA decided to run Gemini 6A alongside Gemini 7, using the latter as the rendezvous target. The 14-day duration forced NASA to tackle challenges of long-duration spaceflight, including waste storage—the crew practiced stuffing trash behind their seats before launch. Both astronauts synchronized their work and sleep schedules with the prime ground shift. Gemini 7 carried out twenty experiments, including studies on nutrition in space, though later Gemini missions also carried a comparable number of experiments. The astronauts also tested a lightweight G5C spacesuit, which became uncomfortable in the hot, cramped spacecraft over long periods. The mission’s highlight came on day eleven with the rendezvous with Gemini 6A. Following advice from Pete Conrad, who had spent eight days on Gemini 5, both men brought books to read. Gemini 7 held the record for the longest spaceflight until Soyuz 9 in June 1970, and remained the longest U.S. crewed flight until Skylab 2 in May–June 1973.
Launch proceeded without issues, and the Titan II rocket performed as expected. Some slight pogo vibrations began 110 seconds into launch, but unlike Gemini 5, where astronauts experienced vision and speech problems, Borman felt only a light shaking, and Lovell felt nothing. After separating from the spent rocket stage, they turned the spacecraft around to station-keep with it—a maneuver first attempted on Gemini 4, which failed due to limited understanding of orbital mechanics. Gemini 7 flew in formation with its upper stage for fifteen minutes, but Borman stopped because too much fuel was being consumed and the st
- Mission
- Gemini 7
- Launch date
- 1965
- Crew
- Frank Borman, Jim Lovell
- Duration
- Nearly 14 days
- Orbits
- 206
- Launch mass
- 3,663 kg
- Landing mass
- 1,958 kg
Lore & Background
Gemini 7 was originally intended to fly after Gemini 6, but the original Gemini 6 mission was cancelled after the failure during launch of the Agena Target Vehicle with which it was meant to rendezvous and dock. The objective of rendezvous was so important that it was decided to fly the alternate Gemini 6A mission concurrently with Gemini 7, using the latter as the rendezvous target. This 14-day mission required NASA to solve some of the problems of long-duration space flight, such as stowage of waste. The crew had practiced stuffing waste paper behind their seats before the flight. Timing their workday to match that of the prime shift ground crews, both men worked and slept at the same time. Gemini 7 conducted twenty experiments, including studies of nutrition in space, though later Gemini missions also carried a comparable number of experiments. The astronauts also evaluated a lightweight spacesuit, the G5C,
Reader's Guide
Gemini 7 held the record for the longest space flight until Soyuz 9 in June 1970, and was the longest crewed space flight in U.S. history until the Skylab 2 mission of May and June 1973. The mission demonstrated the feasibility of long-duration human spaceflight, solving problems of waste stowage, personal hygiene, and crew comfort. The rendezvous with Gemini 6A proved the critical capability of meeting another spacecraft in orbit, a prerequisite for the Apollo lunar missions. The crew's experiences with food, waste collection, and suit removal informed later spacecraft design. The unidentified objects reported by the crew during a UFO sighting have never been determined. The lessons learned from Gemini 7 directly contributed to the success of subsequent Gemini and Apollo missions.
Did You Know?
- Gemini 7 was the passive target for the first crewed space rendezvous, performed by Gemini 6A.
- The crew reported seeing 'millions' and 'trillions' of visible particles moving about three or four miles from their cabin, the source of which has never been determined.
- Both astronauts took books along to read, heeding the advice of Pete Conrad who had flown for eight days on Gemini 5.
- The mission held the record for the longest space flight until Soyuz 9 in June 1970.
More in Successful space missions 1-24
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