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.jpg) Atlantis approaches Mir with the station's Docking Module in its payload bay | |
| Names | Space Transportation System-74 |
|---|---|
| Mission type | Shuttle-Mir |
| Operator | NASA |
| COSPAR ID | 1995-061A |
| SATCAT no. | 23714 |
| Mission duration | 8 days, 04 hours, 31 minutes, 42 seconds |
| Distance travelled | 5,500,000 kilometres (3,400,000 mi) |
| Orbits completed | 128 |
| Spacecraft properties | |
| Spacecraft | Space Shuttle Atlantis |
| Launch mass | 112,358 kilograms (247,707 lb) |
| Landing mass | 92,701 kilograms (204,371 lb) |
| Payload mass | 6,134 kilograms (13,523 lb) |
| Crew | |
| Crew size | 5 |
| Members | |
| Start of mission | |
| Launch date | 12 November 1995, 12:30:43.071 UTC |
| Launch site | Kennedy, LC-39A |
| End of mission | |
| Landing date | 20 November 1995, 17:01:27 UTC |
| Landing site | Kennedy, SLF Runway 15 |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 391 kilometres (243 mi) |
| Apogee altitude | 396 kilometres (246 mi) |
| Inclination | 51.6 degrees |
| Period | 92.4 min |
| Docking with Mir | |
| Docking port | SO starboard |
| Docking date | 15 November 1995, 06:27:38 UTC |
| Undocking date | 18 November 1995, 08:15:44 UTC |
| Time docked | 3 days, 1 hours, 48 minutes 6 seconds |
 STS-74 mission patch  Left to right: Halsell, Cameron; Standing: McArthur, Ross, Hadfield | |
STS-74 was the fourth mission of the US/Russian Shuttle–Mir program, and the second docking of the Space Shuttle with Mir. Space Shuttle Atlantis lifted off from Kennedy Space Center launch pad 39A on 12 November 1995. The mission ended 8 days later with the landing of Atlantis back at Kennedy. It was the second in a series of seven straight missions to the station flown by Atlantis.
The shuttle delivered a pair of solar arrays along with the Russian-built Mir Docking Module to allow docking with the station by the space shuttle without moving Mir's Kristall module. During the three-day docking, the Russian, Canadian, and American crew transferred supplies and equipment between Atlantis and Mir, moved several long-term experiments, and upgraded the station with new equipment, particularly during the installation of the docking module.