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

An Orbital ATK Antares rocket streaked into orbit early Monday from Wallops Island, Virginia, with a commercial Cygnus cargo craft carrying a quantum research experiment, an investigation into the properties of concrete in space, fresh food and other provisions for the International Space Station’s six-person crew.

Japanese space officials have rescheduled the launch of an H-2B rocket and a space station-bound HTV supply ship for Saturday after halting a countdown last week due to a propulsion system problem and bypassing a launch opportunity Friday because of a poor weather forecast.

Alan Bean, a Navy test pilot and astronaut who walked on the moon and then spent two months aboard America’s first space station before leaving NASA and becoming an accomplished artist, painting moonscapes and space vistas that garnered widespread critical praise, died Saturday. He was 86.