Astronaut Michael Foale, STS-103 mission specialist, used virtual-reality hardware to rehearse some of his space walk activities on NASA's third servicing mission to the Hubble Space Telescope. Joining him for the eight-day servicing mission over the Christmas season were Commander Curt Brown, Pilot Jim Kelly, Mission Specialist Jean Francois-Clervoy and fellow space walkers Claude Nicollier, Steve Smith and John Grunsfeld.