Live coverage: Ariane 5 launches for DirecTV

The James Webb Space Telescope is at risk of another launch delay beyond the mission’s current target launch date in March 2021, the Government Accountability Office said this week.

The European Space Agency’s $550 million Aeolus science mission, the product of a drawn-out 16-year development effort that required engineers to master new technologies, is in the starting blocks on a launch pad in French Guiana awaiting liftoff Wednesday to monitor wind speeds from space for the first time on a global scale.

SpaceX is seeking approval to add up to 30,000 more satellites to its Starlink broadband network, on top of 12,000 spacecraft already authorized by U.S. government regulators, according to filings submitted to the International Telecommunication Union.