Escape Velocity Achievement
Sever the tether before the satellite overloads in the Space Tether missionThis achievement is rather easy, although the mission itself is not. Work your way through the canyon, but make sure to fly slightly northwest from the start and enter the canyon by foot. Slowly work your way around, mostly focusing on missile turrets, as they do the most damage. Take out the four targets located underneath the cone-shaped devices. Once they're destroyed, circle around the tether, located in the center of the canyon, taking out the orange targets. After you blow up the last one, you'll have a few minutes to take out 8 yellow targets located near the top of the tether. Don't even worry about enemies, just circle and fire.