Asteroid Bennu
Live coverage: Atlas 5 countdown and launch journal
The United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 7:05 p.m. EDT (2305 GMT) today to send NASA’s OSIRIS-REx spacecraft on a seven-year, 4.4-billion-mile mission to rendezvous with Asteroid Bennu and bring a sample of the primordial object back to Earth. Follow the mission in our live journal.
Photos: Asteroid probe encapsulated, mounted atop Atlas 5 for launch
Technicians inched the two halves of the Atlas 5’s aluminum nose cone around NASA’s OSIRIS-REx spacecraft to package the asteroid sample return probe, then moved the satellite to the rocket’s assembly building and hoisted it aboard the two-stage booster during the final days of August for the Sept. 8 launch.