OSIRIS-REx principal investigator Dante Lauretta said:

We now move on to test the entire flight system over the range of environmental conditions that will be experienced on the journey to Bennu and back. This phase is critical to mission success, and I am confident that we have built the right system for the job.

If the spacecraft passes all the tests Lauretta and his team have in store for it, then it'll be shipped off to NASA in May to prepare for its launch in September 2016. NASA's hoping that the data and samples it collects can give them clues on the beginning of life on Earth. They're also depending on it to help them conjure up a way to deal with any asteroid that could hit our planet and to keep us from going the way of the dinosaur.

[Image credit: Lockheed Martin]