Mission Specialist Sergei Konstantinovich Krikalev a Russian cosmonaut gives a thumbs up during suit check before launch.

In the Operations and Checkout Building, STS-88 Mission Specialist Sergei Konstantinovich Krikalev, a Russian cosmonaut, gives a thumbs up during suit check before launch. Mission STS-88 is expected to lift off at 3:56 a.m. EST with the six-member crew aboard Space Shuttle Endeavour on Dec. 3. Endeavour carries the Unity connecting module, which the crew will be mating with the Russian-built Zarya control module already in orbit. In addition to Unity, two small replacement electronics boxes are on board for possible repairs to Zarya batteries. The mission is expected to last 11 days, 19 hours and 49 minutes, landing at 10:17 p.m. EST on Dec. 14