Q&A with Jeff Bezos, founder of Blue Origin

Citing medical reasons, Russia’s space agency announced Wednesday that it is replacing two cosmonauts who were scheduled to fly on the next Soyuz mission to the International Space Station in April with backup crew members.

SpaceX launched 60 more spacecraft Wednesday to join the Starlink fleet beaming broadband signals around the world, while the company’s engineers move closer to debuting a sunshade that could reduce the satellites’ impacts on ground-based astronomy.

Miss Monday night’s launch from Kennedy Space Center? Watch a replay of the Falcon 9 rocket taking off with the Inmarsat 5 F4 communications satellite, a heavyweight spacecraft designed to link airliners, ships and others on-the-go via broadband.