Q&A with Keith Gendreau, principal investigator of the first X-ray space communications experiment (members only)

NASA plans to shelve a robotic demonstration mission to refuel an aging Landsat Earth-imaging observatory and join forces with the private sector and a U.S. military research and development agency in a public-private partnership to commercialize satellite servicing technologies, according to language in the White House’s budget request released Tuesday.

The U.S. Air Force has identified the launch of a next-generation GPS navigation satellite for the first in a series of competitive rocket procurements between United Launch Alliance and SpaceX, service officials announced Wednesday.

A Russian Soyuz rocket rolled out to a launch pad in Kazakhstan early Thursday in preparation for liftoff Saturday with a Russian commander, Italian flight engineer and U.S. astronaut heading for the International Space Station.