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

NASA’s new communications satellite, launched to a preliminary orbit August 18, has ascended to geosynchronous altitude more than 22,000 miles up, deployed its giant antennas and extended twin solar arrays to begin in-space commissioning.

Scientists working on a new lightning detection instrument mounted outside the International Space Station said Tuesday they expect little effect on the sensor’s performance from possible contamination from the upper stage of a SpaceX Falcon 9 rocket that launched it into orbit April 2.

Catching a break from nearby thunderstorms, a SpaceX Falcon 9 rocket soared through mostly cloudy skies into space Saturday on the 100th launch from historic pad 39A in Florida, sending a fresh batch of supplies and experiments to the International Space Station.