Video: Press conference following Falcon launch and landing

A Russian Progress supply ship launched Tuesday from the Baikonur Cosmodrome in Kazakhstan, firing into orbit from a snow-covered pad to haul three tons of fuel, water and equipment to the International Space Station.

The first launch for Iridium’s next-generation mobile communications fleet has been pushed back four months — from December until April — to resolve a technical problem inside the spacecraft’s Ka-band communications payload.

The departure and return to Earth of a four-person space station crew on a SpaceX Dragon capsule has been postponed again by high winds in the splashdown zone in the Gulf of Mexico. NASA and SpaceX officials announced the Crew Dragon is now scheduled to undock from the International Space Station late Saturday for a predawn splashdown in the Gulf of Mexico early Sunday.