CAPE CANAVERAL, FL - SEPTEMBER 7: In this handout photo provided by NASA, The United Launch Alliance Atlas V rocket with NASA's Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft on board is seen after arriving at Space Launch Complex 41 on Wednesday, Sept. 7, 2016 at Cape Canaveral Air Force Station in Florida.  OSIRIS-REx is scheduled to launch on Sept. 8 from and will be the first U.S. mission to sample an asteroid, retrieve at least two ounces of surface material and return it to Earth for study. The asteroid, Bennu, may hold clues to the origin of the solar system and the source of water and organic molecules found on Earth. Photo Credit:  (Photo by Joel KowskyNASA via Getty Images)