31.   Indeed photovoltaics, the generation of electricity in response to light, will play a crucial role in some future U.S. space missions.

32.   Instead it recounts the nightmare of the space shuttle explosion and the Hubble telescope fiasco, and casts future space missions in severe shadows.

33.   It would be enough to inspire a new round of space missions, but not enough to answer the question of how special, really, home is.

34.   Its products were worn by astronauts on the Apollo space missions.

35.   John Young, veteran of the Gemini, Apollo and Shuttle space missions, will be on SpaceWatch.

36.   Landis has argued for all-female long-distance space missions, citing statistics showing that woman almost never murder each other.

37.   NASA astronauts assisted the students in simulated space missions, such as repairing a damaged shuttle and restoring it to orbit.

38.   NASA concluded that it had come from previous Russian and American space missions.

39.   NASA will be launching more than a space shuttle when it sends Eileen Collins into orbit Tuesday to command her first space mission.

40.   NASA officials say despite these problems they are committed to both piloted and robotic space missions.