Live coverage: Orion lands in Pacific

NASA, Lockheed Martin and United Launch Alliance officials hold the L-2 day countdown status briefing following the launch readiness review on Tuesday, Dec. 2.

United Launch Alliance’s next launch attempt for its Delta 4-Heavy rocket from Cape Canaveral with a top secret U.S. government spy satellite will be delayed to no earlier than early Tuesday.

A Delta 2 rocket has lifted off from California’s Central Coast on Saturday with a NASA environmental satellite designed to improve flood and drought forecasts, map moisture in Earth’s soils, and track the planet’s water cycle.