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.

The first six broadband satellites for OneWeb, which envisions a constellation of hundreds of orbiting relay stations beaming Internet signals down to Earth, lifted off Wednesday aboard a Soyuz rocket from French Guiana. Launch occurred at 2137 GMT (4:37 p.m. EST).

A reconnaissance satellite built in secrecy in France for the Moroccan government launched Tuesday on top of a Vega rocket from the Guiana Space Center in South America.