Q&A with Jeff Bezos, founder of Blue Origin

Marc Rayman is chief engineer on NASA’s Dawn mission, which has run out of fuel after a 11-year interplanetary journey that explored Vesta and Ceres, the two largest objects in the asteroid belt between the orbits of Mars and Jupiter.

A SpaceX Dragon supply ship departed the International Space Station and returned to Earth Tuesday to conclude its third round-trip flight to the orbiting research outpost, bringing home a spacesuit, mice and and numerous experiments.

SpaceX’s next launch, scheduled for no earlier than May 15, will loft dozens of small test satellites into orbit from Cape Canaveral for the company’s planned Starlink broadband network, with fully operational Starlink spacecraft to follow on future missions, a senior SpaceX official said Tuesday.