Watch as SpaceX test-fires Falcon 9 ahead of Starlink launch (members only)

The latest prototype of SpaceX’s  Starship launch vehicle — Starship SN10 — took off from the company’s South Texas test site and flew to an altitude of more than 30,000 feet Wednesday, then descended to a controlled vertical landing after two previous test vehicles crashed at touchdown. Minutes later, the 16-story test rocket exploded in a fireball, but the test flight appeared to be a major step forward in the early stages of the Starship program.

With a robot rather than a cosmonaut in the commander’s seat, a Russian Soyuz spacecraft rocketed into orbit from Kazakhstan late Wednesday (U.S. time) en route to the International Space Station on a critical test flight before crews begin riding an upgraded Soyuz booster next year.

An unexpected reading from a ground sensor prompted SpaceX to scrub the planned launch of a Falcon 9 rocket Thursday with 60 more Starlink broadband satellites. It was the second last-minute abort of a rocket launch on Florida’s Space Coast in less than 10 hours, following a hold Wednesday night just before engines ignited on a United Launch Alliance Delta 4-Heavy rocket.