Control Tower
Control Tower is a room in the Phendrana Drifts region of Metroid Prime.
Without Plasma Beam
It is possible to acquire the Artifact of Elder without the Plasma Beam. Normally, it is required to use Plasma Beam to melt the ice and allow the explosives on the tower to be shot, but it is possible to shoot the explosives by jumping off some crates and aiming over the invisible barrier.
Secret World
Use either a Slope Jump (above) or an HBJ (below) to clear the wall in Control Tower.