Iranian officials say a rocket launch last weekend was merely a test, but U.S. military intelligence officials now see it as a failed attempt to put a satellite in orbit.

NASA engineers have come up with a dual shock absorber solution to the problem of excessive vibrations with the new Ares 1 rocket that will launch the agency's Orion space shuttle replacement.

To bring this sci-fi vision of 50-pound "micro-spacecraft" and 10-pound "nano-spacecraft" to reality, scientists have now invented a razor-thin skin that can protect craft against the extreme heat and intense cold found in outer space and withstand micrometeoroids hurtling at thousands of miles per hour.

Something beneath the surface is changing Earth's protective magnetic field, which may leave satellites and other space assets vulnerable to high-energy radiation.

NASA has delayed the launch of an unmanned spacecraft to the moon to scout for potential landing sites for astronauts.