Here's the 46th Lunar and Planetary Science Conference PDF source: http://www.hou.usra.edu/meetings/lpsc2015/pdf/1259.pdf http://www.hou.usra.edu/meetings/lpsc

Here's the 46th Lunar and Planetary Science Conference PDF source: http://www.hou.usra.edu/meetings/lpsc2015/pdf/1259.pdf http://www.hou.usra.edu/meetings/lpsc2015/pdf/1259.pdf And here is a video NASA released regarding the subject: https://www.youtube.com/watch?v=NnKxbdpLP5E https://www.youtube.com/watch?v=NnKxbdpLP5E