Q&A with Sara Seager, deputy director of science on NASA’s TESS mission (members only)

SpaceX continued launching satellites for the Starlink internet network Friday, sending a Falcon 9 rocket aloft from Cape Canaveral with 56 more older-generation broadband spacecraft as ground teams troubleshoot problems with a batch of upgraded Starlinks launched last month.

For the second time this year, SpaceX has launched a commercial communications satellite for Tokyo-based SKY Perfect JSAT Corp. A Falcon 9 rocket blasted off at 1:26 a.m. EDT (0526 GMT) from Cape Canaveral with the JCSAT 16 satellite to relay data and video across Japan and the Asia-Pacific. The Falcon 9’s first stage booster nailed a landing on a barge in the Atlantic Ocean a few minutes later.

NASA has selected 14 companies for contracts of more than $370 million to advance technology for human missions to the moon and Mars. Most of the money will support flight demonstrations by SpaceX, United Launch Alliance, and other companies that could lead to in-space refueling and propellant depots for reusable lunar landers and deep space transportation vehicles.