Recalling the 2003 Columbia disaster. An essay by William Harwood. Read More...

A United Launch Alliance Atlas 5 rocket rumbled to life and blasted off from the Cape Canaveral Air Force Station Wednesday evening, boosting a powerful NASA Tracking and Data Relay Satellite into orbit. Read More...

Lockheed Martin Space Systems Co. is joining Sierra Nevada Corp.'s Dream Chaser commercial manned spacecraft program to help with flight certification and composites manufacturing, officials say. Read More...

NASA's Opportunity Mars rover, with a design life of just 90 days, moves into its 10th year of operations, exploring the rim of Endeavour Crater. Principal Investigator Steve Squyres discusses the mission. Read More...

A second company has jumped into what the founders hope will be a lucrative emerging market, prospecting for raw materials among near-Earth asteroids using fleets of low-cost robotic spacecraft. Read More...

An inflatable module developed by a Las Vegas hotel entrepreneur will be attached to the International Space Station in 2015 for a two-year test run to evaluate the technology's performance in space. Read More...

The European Space Agency will supply the service module that will power an initial unmanned test flight of NASA's Orion deep space exploration capsule in 2017, officials say.
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Taking their time with a surprising variety of scientific targets, scientists are gearing up to test the Curiosity Mars rover's powerful impact drill before beginning a year-long trek to Mount Sharp some six miles away. Read More...

The first American manned spacecraft to reach orbit in the wake of the shuttle's retirement will be crewed by company test pilots -- not NASA astronauts -- as early as mid 2015, company officials say.
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