Live coverage: International crew lands in Kazakhstan

A European environmental satellite launched Tuesday from Russia’s Plesetsk Cosmodrome to begin a mission of at least seven years measuring the height, color and temperature of the world’s oceans. The Sentinel 3A spacecraft lifted off aboard a Rockot booster at 1757 GMT (12:57 p.m. EST).

Elements of the next U.S. commercial cargo-delivery trip to the International Space Station are coming together at Kennedy Space Center for the planned March 10 liftoff.

Northrop Grumman’s Antares rocket will deliver a Cygnus supply ship into orbit Saturday to begin a pursuit of the International Space Station.