Live coverage: Station crew lands in Kazakhstan

A solid-fueled rocket motor mounted horizontally on a Utah hillside ignited and powered up to more than 3 million pounds of thrust Tuesday in a final full-up test-firing before a similar booster helps propel NASA’s huge Space Launch System away from Earth on a demonstration flight in 2018.

SpaceX scrubbed the planned launch of its next set of Starlink satellites Friday. A Falcon 9 rocket is awaiting liftoff from pad 39A at the Kennedy Space Center in Florida with 57 Starlink Internet satellites and two commercial Earth-imaging microsatellites for BlackSky.

Blue Origin plans to begin crew flights of its suborbital New Shepard spacecraft on July 20, launching the highest bidder in an online auction out of the atmosphere and into space for a few minutes of weightlessness and an out-of-this world view before returning to Earth.