Dirty laundry in space? NASA, Tide tackle cleaning challenge

Astronaut Leland Melvin, STS-129 mission specialist, exercises Nov. 22, 2009, in the Unity module of the International Space Station while the space shuttle Atlantis is docked with the station. (NASA/via AP)

CAPE CANAVERAL, Fla. — How do astronauts do laundry in space? They don’t.