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Could life have rained down on Earth from outer space? That tantalizing prospect has been raised in a new scientific paper by NASA scientist Richard B. Hoover of the Marshall Space Flight Center in Huntsville, Ala.

The space shuttle Discovery is set to land for the last time Wednesday at the Kennedy Space Center in Florida. It will then be sent off to the Smithsonian for retirement as NASA shuts down the shuttle program.

The six astronauts orbiting Earth on space shuttle Discovery are keeping busy during their mission's first full day in space.

Space shuttle Discovery has blasted off on its final voyage, taking six astronauts on their way to orbit.Discovery will spend 11 days in orbit, and will dock with the International Space Station.

Space shuttle Discovery, NASA's oldest surviving space shuttle and the beloved workhorse of the fleet, rocketed up into the sky on Thursday afternoon for a bittersweet final voyage.Discovery's final countdown was a nail-biter.

A space shuttle that has racked up an impressive list of firsts is about to add one more — it will soon become the first in NASA's fleet to be retired.Space shuttle Discovery made its debut back in 1984, with a satellite-deploying spin through space that included a congratulatory phone call to the c

You never know what you'll see on your lunch hour within a few blocks of the NPR headquarters here in D.C. Presidential motorcades make the rounds regularly, and we once saw the Oscar Mayer Wienermobile cruise by.