Video: Press conference following Falcon launch and landing

Expedition 45 commander Scott Kelly and flight engineer Kjell Lindgren have switched their spacesuits to battery power to begin planned six-and-a-half-hour spacewalk Wednesday outside the International Space Station.

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.

The SpaceX launch team fired the Falcon 9 main engines at pad 39A today as a readiness test for next week’s Inmarsat satellite deployment flight.