Live coverage: Proton blasts off on return-to-flight mission

Russia launched a Soyuz rocket Sunday through a veil of fog over the Baikonur Cosmodrome in Kazakhstan, carrying the first spacecraft in a new program to monitor Arctic weather systems and relay emergency communications.

Completing a fast-track, three-hour pursuit of the International Space Station, a Russian Progress supply ship overcame a last-minute misalignment and autonomously linked up with with orbiting research complex Thursday with nearly three tons of fuel, food and supplies.

SpaceX performed a hold-down test-firing Jan. 20 of a Falcon 9 rocket at Cape Canaveral in preparation for a launch with 60 Starlink broadband satellites, but officials delayed the missions’s planned launch Tuesday due to extreme weather in the downrange recovery zone for the first stage and payload fairing. The next possible launch attempt is expected at 9:49 a.m. EST (1449 GMT) Monday.