Photos: Atlas 5 launches new weather observer

An early test model of SpaceX’s Starship vehicle, which billionaire entrepreneur Elon Musk says will carry people and cargo to the moon and Mars, briefly left the ground on its first untethered test flight Thursday night powered by the company’s new methane-fueled Raptor engine.

United Launch Alliance called off the planned launch of an Atlas 5 rocket Wednesday at Cape Canaveral to resolve a problem with valves at the launch pad, while a SpaceX team a mile-and-a-half to the south readied a Falcon 9 rocket for liftoff Thursday evening with a GPS navigation satellite for the U.S. military.

SpaceX has delayed liftoff of its next cargo ship bound for the International Space Station until Friday, setting up a one-shot attempt to launch the commercial supply carrier from Cape Canaveral before a potential slip to late December due to high solar angles in orbit.