The space shuttle Atlantis lifted off Monday on the fifth and final mission to repair and upgrade the Hubble Space Telescope. The crew will add a new camera and make other changes. Spencer Michels reports.
By PBS NewsHour
A NASA telescope is set to launch Friday night from Cape Canaveral Air Force Station in Florida, on a three-and-a-half year mission to scan the Milky Way galaxy for Earth-like planets.
Two teams of astronomers have for the first time captured direct images of planets orbiting faraway stars.
NASA's Phoenix Mars lander touched down Sunday and began transmitting pictures from the northern arctic plains of Mars where scientists hope to find evidence of water and life-sustaining conditions. Mission co-leader Ray Arvidson explains.
The deaths of some stars are marked by a unique event: the supernova. A NASA telescope captured a massive explosion in January, giving scientists clues into the mechanics of our own world. Robert Kirshner of Harvard University explains the significance…
As Pittsburgh continues to rebuild itself after the loss of thousands of manufacturing jobs in the 1980s, a technology industry is emerging. Tom Bearden reports on how engineers in the city are developing robots for everything from elderly care to…
The space shuttle Atlantis moved away from the International Space Station Tuesday after a nearly 10-day stay during which astronauts installed a truss and pair of solar arrays, and experienced a temporary computer meltdown.
The NASA rovers Spirit and Opportunity, which began their fourth year on Mars this month, are testing new software as they continue to investigate the planet's hills and craters.
Two years after President Bush proposed to return astronauts to the moon, NASA announced plans Monday for manned trips there by 2020 and the construction of a permanent base, most likely near the Shackleton crater on the moon's south pole,…
The space shuttle Atlantis docked with the International Space Station Monday in preparation for attaching a 45-foot truss with new solar arrays to the orbiting research facility.
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