Determine the thickness and structure of the
- Determine the crustal thickness with a precision of plus or minus 10 kilometers (6.2 miles). The pre-InSight estimates are that the crust is about 65 kilometers (40 miles) thick, plus or minus 35 kilometers (22 miles).
- Resolve crustal layers with a thickness of 5 kilometers (3 miles) or greater. Prior to InSight, there has been no certain knowledge about crustal layering.