Live coverage: Two satellites lift off aboard Ariane 5

NASA astronauts Doug Hurley and Bob Behnken returned to Earth Sunday with an on-target splashdown in the Gulf of Mexico at 2:48 p.m. EDT (1848 GMT) Sunday. The astronauts completed a two-month stay on the International Space Station on a test flight of SpaceX’s Crew Dragon spacecraft.

After months of delays caused by the coronavirus pandemic, Arianespace scrubbed back-to-back Vega launch attempts Saturday and Sunday due to unfavorable high-altitude winds over the European-run Guiana Space Center in South America. The Vega rocket is awaiting launch on a rideshare mission carrying 53 small satellites into orbit for 21 customers in 13 countries.

The launch of the James Webb Space Telescope will not happen in March 2021 — the mission’s previously-scheduled launch date — after the coronavirus pandemic forced a more than 50 percent reduction in staff levels at the observatory’s assembly and test facility.