Topic: NASA Jet Propulsion Laboratory

How much water in that snowpack? Scientists seek a better gauge.

More accurate, more frequent measurements of mountain snowpacks will allow water managers to mete out reservoirs with greater confidence. Two watersheds in the western US are testing grounds for a new aerial approach.

USA Update Alan Wood dies, leaves legacy of Iwo Jima flag

Ancient Mars could have been habitable, says NASA

Rover Curiosity may resume operation on Mars soon

Dennis Tito to announce private mission to Mars

US scientists seek to prevent another meteor explosion

Little telescope to hunt big game: hard-to-see near-Earth asteroids

How dangerous are near-Earth asteroids? 5 key questions answered.

Mars is red on the outside, gray on the inside, rover discovers

In historic first, Mars Curiosity rover drills into Martian rock

Curiosity makes history with scoop – and begins Mars mission in earnest

Russian asteroid highlights astronomers' challenge: predicting such space objects

Russian meteor blast had force of 300-kiloton nuclear warhead (+video)

Friday's near-miss asteroid could help track more dangerous ones

State of the Union: NASA's 'Mohawk Guy' will sit with Michelle Obama

Comet ISON: NASA releases first photos of 'comet of the century' (+video)

Earth-buzzing asteroid big enough to level a city, found by amateurs

Earth won't be destroyed by huge asteroid next week, say scientists

The Mars mystique

Are polar ice sheets shrinking? Report offers definitive answer at last.

Leonid meteor shower late tonight: Stay up, bundle up, look up

Curiosity's unsung skill: scouting Mars for a human mission (+video)

NASA rover Curiosity finds a rock not seen before on Mars (+video)

Mars Curiosity rover touches rock, 'does a science' (+video)

Mini-Great Pyramid of Giza on Mars intrigues Curiosity rover team