If your having trouble with the puzzle here's the solution:
When on top of the ruins you need to put each of your away team on the four circles in the corners of the ruins. You do this by clicking the "v" looking icon next to the picture of your BO then place it on the circle, when in the correct position a beam of light like a 'pillar' will apear.
After the BO's are in place you stand in the middle circle, again another pillar of light will appear. At that point a drop down type of menu will appear with ' activate ...' there should be start at the top and click your way down. you will activate 2 of the 3 taht way after that you will need to move your Capt. around and activate the pads until it unlocks the starchart.