Live coverage: SpaceX Falcon Heavy launches NASA’s Psyche on mission to a metal asteroid

Space missions dispatched into the solar system often have journeys lasting years before reaching a scientific payoff, but NASA’s Parker Solar Probe launched last weekend on a speedy departure from planet Earth is already getting ready to sweep closer to the sun than any spacecraft in history during a flyby later this year.

The Starlink 10-20 mission will add another 28 broadband internet satellites to SpaceX’s megaconstellation. Liftoff from pad 40 at Cape Canaveral Space Force Station is scheduled at 8:29 a.m. EDT (1229 UTC).

After a six-week delay for undisclosed reasons, SpaceX raised a Falcon 9 vertical on its launch pad Thursday at the Kennedy Space Center in Florida for another try early Friday to send into orbit the company’s next batch of Starlink Internet relay stations and a pair of commercial BlackSky Earth-imaging microsatellites.