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

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.

Rainy weather expected across Central Florida this weekend has a 50-50 chance of preventing the launch of a SpaceX Falcon 9 rocket Saturday on a resupply mission to the International Space Station, U.S. Air Force forecasters said Wednesday.

Bulking up NASA’s constellation of tracking stations in the sky that provides critical links between orbiting spacecraft and ground control, a United Launch Alliance Atlas 5 rocket successfully deployed a new communications hub in space today.