Live coverage: Indian PSLV launches with RISAT 2B radar satellite

NASA announced Tuesday it has awarded SpaceX a $331 million contract to launch the first two pieces of the Gateway lunar outpost in 2024 using a modified version of the Falcon Heavy rocket to hurl the massive core of the deep space station toward the moon.

A classified satellite code-named Zuma, launched Sunday night atop a SpaceX Falcon 9 rocket, may have suffered a mission-ending failure during or shortly after the climb to space, according to news accounts Monday evening.

The United Launch Alliance Atlas 5 rocket, standing 189 feet tall and and weighing 720,000 pounds, unleashes 860,000 pounds of thrust from its main engine to launch the SBIRS GEO Flight 3 early-warning satellite from Cape Canaveral, Florida.