Blogs by Jason Davis
Posts on human and robotic exploration of space
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A Soyuz capsule carrying Roman Romanenko, Chris Hadfield and Tom Marshburn landed safely in Kazhakstan after 146 days in space.
Following an ammonia leak reported Thursday morning, NASA is planning a spacewalk to investigate a radiator on the P6 truss.
SpaceX's CRS-2 mission began successfully, but hit a snag when a thruster propellant valve failed to work properly.
SpaceX's Grasshopper rocket passed its most ambitious test flight yet, rising 12 stories before hovering and settling gently back down onto its landing pad.