A United Launch Alliance Delta 2 rocket boosted an innovative NASA satellite into orbit Saturday, kicking off a three-year, $916 million mission to measure the moisture, frozen and liquid, in the top few inches of Earth's soil.
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A United Launch Alliance Delta 2 rocket carrying a NASA climate research satellite was grounded Thursday by high winds above the Vandenberg Air Force Base launch site northwest of Los Angeles.
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A NASA satellite is poised for launch Thursday to measure the amount of water in the top 2 inches of soil around the world to help scientists understand its effects on weather, its role in climate change and to better predict and respond to natural disasters. Read More...

NASA hopes to begin launching U.S. and partner astronauts to the space station aboard Boeing and SpaceX ferry craft in the 2017 timeframe, but agency managers expect to continue sending crew members up aboard Russian Soyuz spacecraft.
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NASA expects to spend some $5 billion on commercial spacecraft to carry astronauts to and from the International Space Station, ending reliance on the Russians for crew ferry flights and eventually lowering the average cost per seat to around $58 million. Read More...

An Atlas 5 rocket carrying a 15,000-pound Navy communications satellite streaked into space Tuesday, carrying the third of five relay stations planned for a $5 billion global network designed to handle high-speed mobile phone traffic. Read More...

Concern about a possible ammonia coolant leak early Wednesday prompted astronauts aboard the International Space Station to briefly evacuate the U.S. segment of the complex and join three cosmonauts in the Russian portion of the outpost. Read More...

A SpaceX Falcon 9 rocket successfully boosted a space station cargo ship into orbit Saturday but an unprecedented attempt to land the rocket's first stage on a barge stationed off the coast of Florida was not successful. Read More...

Launch of a SpaceX Falcon 9 rocket carrying a Dragon cargo ship bound for the International Space Station was called off Tuesday because of apparent problems with the second stage engine steering system.
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SpaceX engineers made final preparations Monday for the planned Tuesday launch of a Falcon 9 rocket carrying a Dragon cargo ship loaded with more than 5,200 pounds of supplies, equipment and science gear bound for the International Space Station. Read More...