Add Yahoo as a preferred source to see more of our stories on Google. The tug-of-war over space shuttle Discovery is becoming more volatile. Discovery — the crown jewel of the Smithsonian ...

The United States once poured money and political capital into a spaceplane concept that promised to take off from a runway, reach orbit in a single leap, and slash the cost of spaceflight. Instead of ...

When Space Shuttle Discovery touched down for the last time at Kennedy Space Center Runway 15 on March 9, 2011, it brought to an end a 27-year career of spaceflight. Discovery flew to space 39 times, ...

It was 40 years ago today (Jan. 28) that the space shuttle Challenger blasted off on its 10th mission to space. Sadly, the vehicle never made it there. Challenger exploded 73 seconds after liftoff ...

The STS-51L mission clears the tower at Launch Complex 39B at NASA’s Kennedy Space Center in Florida on Jan. 28, 1986. Credit: NASA / Courtesy Sign up for the Concord Monitor’s morning newsletter for ...

Their eyes were watching. Some knew something was wrong. Others were slow to realize. Soon everyone came to grief. Forty years ago Space Shuttle Challenger climbed into the clear amid blue skies over ...