The crew of Frank Borman and Jim Lovell spent nearly 14 days in space, making a total of 206 orbits.

The astronauts also evaluated a lightweight spacesuit, the G5C, which proved uncomfortable when worn for a long time in the Gemini spacecraft's hot, cramped quarters.

[7] Both astronauts, heeding the advice of Pete Conrad who had flown for eight days on Gemini 5, took books along to read.

Some slight pogo vibrations were detected starting at T+110 seconds into launch, but unlike with Gemini 5 where the astronauts experienced momentary vision and speech problems, Borman reported only feeling a very light shaking sensation and Lovell nothing.

The Gemini 4 attempt was unsuccessful, due to the limited knowledge at the time of the complex orbital mechanics involved.

Finally, the NASA managers decided that there was little benefit in having the crew members suited, and so relented after a couple of days.

The lessons learned from Gemini 5 allowed Lovell and Borman to have improved personal hygiene during their mission.

They showered with an anti-dandruff shampoo for two weeks prior to the flight to curb the problems their predecessors had experienced with skin flakes accumulating inside the spacecraft and removal of the pressure suits in-flight also helped keep their skin more moist and less prone to drying out.

In their postflight debriefing, Borman and Lovell noted that the food rations had been generally of good quality, but they strongly disliked the freeze-dried protein bites and advised against them being included on future missions.

As part of the in-flight medical experiments, the crew were required to collect and save some of their bodily wastes for post-flight analysis, a task they described as less-than-enjoyable.

Borman suggested afterwards that a tube and valve mechanism be added to the spacecraft to simply release urine into space, an idea that would be realized on the Apollo command module.

On their 31st orbit, Gemini 7 observed the underwater launch and exhaust trail of a Polaris missile from the submarine USS Benjamin Franklin off Florida.

Gemini 6A was launched on December 15, after a three-day-long delay due to a malfunction and engine shutdown immediately after ignition.

As the sleep periods approached, Gemini 6A made a separation burn and slowly drifted out to 16 kilometers, to prevent an accidental collision in the night.

Gemini 6A reentered the next day, landing within 9.7 nautical miles (18.0 km) of the planned site, the first truly accurate atmospheric reentry.

[10][11] As with a few other missions, the backup crew produced a spoof of the insignia, featuring an unlit torch, a lighter and the words "NEED A LIGHT - FRANK?