The OSIRIS-REx spacecraft being lifted into the thermal vacuum chamber at Lockheed Martin for environmental testing. Credits: Lockheed Martin Read more: <a href="http://www.nasa.gov/feature/goddard/2016/osiris-rex-in-thermal-vac" rel="nofollow">www.nasa.gov/feature/goddard/2016/osiris-rex-in-thermal-vac</a>