Live coverage: Two satellites lift off aboard Ariane 5

Engineers working on the James Webb Space Telescope, which had its launch delayed to 2020 earlier this year, recently discovered another problem during testing at the observatory’s prime contractor Northrop Grumman in Southern California.

SpaceX launched the next group of satellites for the company’s Starlink broadband network Wednesday at 9:25 p.m. EDT (0125 GMT Thursday) from pad 40 at Cape Canaveral Air Force Station. The satellites rode into orbit on a Falcon 9 rocket with a first stage flown on four previous missions, and the booster made a successful fifth landing on a SpaceX drone ship in the Atlantic Ocean.

An Ariane 5 rocket is poised for a rare overnight launch early Wednesday, and these photos show the 180-foot-tall launcher on the eve of liftoff with a multi-mission Eutelsat communications satellite.