11.   The space agency plans to launch robotic missions to Mars every two years.

12.   Then missions should be launched as soon as the technology is ready, and no later.

13.   They estimate the cost of launching missions from the station at several hundred million dollars, McHenry said.

14.   Three attempts to launch the mission last week were postponed by rain and a technical problem.

15.   To that end, a manned mission is launched, led by flight commander Carrie-Anne Moss, who looks good in leather and gets a shower scene.

16.   Under current plans, no further U.S. space shuttle missions can be launched to the station until the Russian service module is in place.

17.   When federal investigators launched their mission to determine who blew up the A.P. Murrah Federal Building in Oklahoma City, they began looking for truck parts.

18.   When the first manned mission to Mars meets with a mysterious disaster, a rescue mission is launched to investigate the tragedy and bring back any survivors.

19.   A rescue mission was launched at daybreak, said Smith.

20.   A search and rescue mission has been launched.