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

As NASA turns up support for future commercial lunar landers, the space agency last week canceled a mission that would have placed a rover on the moon to survey resources, such as water and helium, that could be used by future human explorers.

Taking a lesson from a launch mishap last June, SpaceX wrote coded commands for future Dragon cargo capsules to deploy their parachutes for an emergency landing in the event of rocket failures, starting with Friday’s resupply flight to the International Space Station.

The launch of a Soyuz rocket with a Progress refueling and resupply freighter was aborted seconds before liftoff Thursday in a rare scrub for Russia’s workhorse rocket, delaying the start of a journey to the International Space Station until at least Saturday and thwarting plans to test out a new automated fast-track rendezvous sequence.