Live coverage: Atlas 5 countdown and launch journal

Launch teams are readying three rockets for a series of blastoffs this week from Cape Canaveral to loft a classified orbiting spy platform for the U.S. government, a long-delayed Argentine radar imaging payload, and the next set of Starlink broadband satellites.

Watch a replay of the launch of an Atlas 5 rocket carrying the $1.2 billion SBIRS GEO Flight 4 satellite into orbit.

India launched the 40th Polar Satellite Launch Vehicle mission Friday carrying an Earth observation satellite and 30 secondary payloads from 15 nations. Liftoff occurred at 0359 GMT Friday (11:59 p.m. EDT Thursday).