4K video of the Falcon Heavy hot fire (members only)

An Ariane 5 rocket emerged from the final assembly building at the Guiana Space Center in South America on Monday for the journey across the tropical spaceport to the ELA-3 launch zone, where the 179-foot-tall (54.8-meter) booster will lift off Tuesday with a pair of commercial communications satellites.

Ready for a resupply run to the International Space Station, a SpaceX Falcon 9 rocket was raised vertical at Cape Canaveral’s Complex 40 launch pad Wednesday ahead of a planned liftoff with more than 5,700 pounds of science experiments and crew supplies.

Thirteen U.S.-built nanosatellites hitched a ride to space Tuesday with a sharp-eyed Indian Earth-imaging observatory at the top of a Polar Satellite Launch Vehicle.