Launching the secretive NROL-61 payload for the U.S. National Reconnaissance Office, a United Launch Alliance Atlas 5 rocket thundered away from Cape Canaveral today at 8:37 a.m. EDT (1237 GMT).

Running a day late, a United Launch Alliance heavy-lift Delta 4 rocket thundered away from Cape Canaveral early Sunday, boosting NASA’s $1.5 billion Parker Solar Probe into space on a daring seven-year mission to “touch the sun” with repeated trips through the star’s blazing outer atmosphere.

The next American polar-orbiting weather satellite that will feed long-range forecasts and track environmental trends has slipped into space-like testing ahead of launch.