Time-lapse video: The Falcon Heavy goes vertical again

NASA is sending into orbit Monday night a spacecraft to test a safer type of rocket fuel, an ultra-precise atomic clock that could change the way missions navigate in deep space, and an experiment to examine the resiliency of electronics to radiation.

NASA has signed a $187 million contract with Northrop Grumman to complete the preliminary design of a pressurized crew habitat for the planned Gateway mini-space station near the moon, and agency officials have discussed new details about plans to launch first two Gateway modules on a single heavy-lift rocket.

America’s most experienced space flier and her three private astronaut crewmates undocked from the International Space Station and plunged back to Earth late Tuesday, blazing through the night sky like a fiery shooting star before splashing down in the Gulf of Mexico.