Part 1 Warming up A 1.An American spacecraft is traveling to Mars to collect information about the red planet.The Mars Reconnaissance Orbiter left Cape Canaveral in Florida on August 12th.The space vehicle is expected to arrive in March of next year.It is to orbit the planet for at least four years. 2.The U.S.space shuttle Columbia has returned to Earth after an abbreviated stay in space because of a mechanical problem.The Space Agency ordered the shuttle back to Earth after one of the three power generators failed Sunday.The generators called "fuel cells"provide all of shuttle's electrical power,and NASA safety rules require the space ship to return to Earth if any fuel cell fails. 3.US space shuttle Discovery has made a successful lift-off from Kennedy Space Center in Florida,en route to the International Space Station.The shuttle with 5 male and 2 female astronauts onboard will take another section of the half-built International Space Station a little truss,or frame into orbits.It's scheduled to come back to earth on December 21Part 1 Warming up A 1. An American spacecraft is traveling to Mars to collect information about the red planet. The Mars Reconnaissance Orbiter left Cape Canaveral in Florida on August 12th. The space vehicle is expected to arrive in March of next year. It is to orbit the planet for at least four years. 2. The U.S. space shuttle Columbia has returned to Earth after an abbreviated stay in space because of a mechanical problem. The Space Agency ordered the shuttle back to Earth after one of the three power generators failed Sunday. The generators called “fuel cells” provide all of shuttle’s electrical power, and NASA safety rules require the space ship to return to Earth if any fuel cell fails. 3. US space shuttle Discovery has made a successful lift-off from Kennedy Space Center in Florida, en route to the International Space Station. The shuttle with 5 male and 2 female astronauts onboard will take another section of the half-built International Space Station a little truss, or frame into orbits. It’s scheduled to come back to earth on December 21