STS-80
| The Wake Shield Facility takes flight for a third time, after being deployed by Columbia's Canadarm | |
| Mission type | Research | 
|---|---|
| Operator | NASA | 
| COSPAR ID | 1996-065A | 
| SATCAT no. | 24660 | 
| Mission duration | 17 days, 15 hours, 53 minutes, 17 seconds | 
| Distance travelled | 11,000,000 km (6,800,000 mi) | 
| Orbits completed | 279 | 
| Spacecraft properties | |
| Spacecraft | Space Shuttle Columbia | 
| Payload mass | 13,006 kg (28,673 lb) | 
| Crew | |
| Crew size | 5 | 
| Members | |
| Start of mission | |
| Launch date | November 19, 1996, 19:55:47 UTC (2:55:47 pm EST) | 
| Launch site | Kennedy, LC-39B | 
| End of mission | |
| Landing date | December 7, 1996, 11:49:04 UTC (6:49:04 am EST) | 
| Landing site | Kennedy, SLF Runway 33 | 
| Orbital parameters | |
| Reference system | Geocentric | 
| Regime | Low Earth | 
| Perigee altitude | 318 kilometres (198 mi) | 
| Apogee altitude | 375 kilometres (233 mi) | 
| Inclination | 28.45 degrees | 
| Period | 91.5 min | 
| From left: Rominger, Jernigan, Musgrave, Jones and Cockrell | |
STS-80 was a Space Shuttle mission flown by Space Shuttle Columbia. The launch was originally scheduled for October 31, 1996, but was delayed to November 19 for several reasons. Likewise, the landing, which was originally scheduled for December 5, was pushed back to December 7 after bad weather prevented landing for two days.
It was the longest Shuttle mission ever flown at 17 days, 15 hours, and 53 minutes.
Although two spacewalks were planned for the mission, they were both canceled after problems with the airlock hatch prevented astronauts Tom Jones and Tammy Jernigan from exiting the orbiter.