Ancient worlds could be kept 'alive' by gravitational nudges

For more than three billion years now, Earth's ability to support life has been a delicate balancing act. Climatic periods of severe cold or hot have brought life to its knees. Glaciers covered the planet in the "snowball ...

Satellite cooling system breakthrough

Scientists and engineers at the Lockheed Martin Advanced Technology Center (ATC) have developed the lightest satellite cryocooler, (cooling system) ever built. The breakthrough is seen as a game-changer in the design of affordable, ...

Image: Pioneer 10's groundbreaking approach to Jupiter

On Dec. 4, 1973, NASA's Pioneer 10 spacecraft sent back images of Jupiter of ever-increasing size. The most dramatic moment was after closest approach and after the spacecraft was hidden behind Jupiter. Here, images gradually ...

New NASA rocket faces delays

The debut launch of NASA's next big rocket - now slated for 2017 - likely will be delayed a year or two because the agency simply does not have the money to finish the rocket and its accompanying crew capsule on time, a top ...

NASA innovator hunts for extraterrestrial amino acids

The hunt for the organic molecules that create proteins and enzymes critical for life here on Earth has largely happened in sophisticated terrestrial laboratories equipped with high-tech gadgetry needed to tease out their ...

Giant impact scenario may explain the unusual moons of Saturn

Among the oddities of the outer solar system are the middle-sized moons of Saturn, a half-dozen icy bodies dwarfed by Saturn's massive moon Titan. According to a new model for the origin of the Saturn system, these middle-sized ...

Scientists discover planetary system orbiting Kepler-47

News flash: The Milky Way galaxy just got a little weirder. Back in 2011 astronomers were amazed when NASA's Kepler spacecraft discovered a planet orbiting a double star system.  Such a world, they realized, would have double ...

Jupiter-bound spacecraft makes key maneuver

A Jupiter-bound spacecraft successfully fired its engine Thursday in the first of two crucial maneuvers intended to bring it toward Earth for a momentum-gathering fly-by.

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