A bill to prohibit further launches of the space shuttle until improved safety features have been developed and installed.

Prohibits launching any space shuttle orbiter unless it is equipped with an escape mechanism which assures that the astronauts aboard will have a realistic chance of survival and recovery should problems arise during the flight as a result of equipment malfunction or hardware defects.

Directs the National Aeronautics and Space Administration to: (1) proceed expeditiously with the development and testing of an escape mechanism to achieve such purpose; and (2) periodically report to the appropriate congressional committees on the progress being made.