21.   The two astronauts were conducting experiments on materials for building future spacecraft.

22.   During the mission, the five-man, two-woman crew of US astronauts will conduct scientific experiments in weightlessness in the Spacelab portable laboratory.

23.   Last month the Discovery astronauts conducted five space walks to modernize and repair Hubble.

24.   The astronauts also conducted experiments on the movement of fluids in microgravity.

25.   The Atlantis astronauts will also conduct their own experiments to study why weightlessness contributes to back pain, severe muscle atrophy, and kidney-stones.

26.   The Israeli astronaut would conduct his training at the NASA center in Houston, Texas.