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

Clad in white spacesuits, astronauts Scott Kelly and Kjell Lindgren recently floated outside the International Space Station on a pair of spacewalks, and the duo carried cameras with them to document the excursions.

Two days after launch from Kazakhstan, a Russian Soyuz spacecraft carrying a crew of three wrapped up a problem-free rendezvous Friday, docking at the International Space Station’s Earth-facing Rassvet port less than a week after three other crew members departed.

An air-launched rocket built by Richard Branson’s Virgin Orbit reached orbit Sunday for the first time, delivering 10 experimental CubeSats for NASA and positioning the company for the start of commercial operations.