As STS-67 launched at a different time of year from STS-35, data was collected from portions of the sky that Astro-1 was not able to view.

The goal of the experiment was to test a closed loop control system that could compensate for motion disturbances.

Information from MACE was to be used to design better control systems that compensate for motion in future spacecraft.

Canister 1 had a motorized door assembly that exposed a UV telescope to space when opened.

Canister 2 contained two video recorders for data storage and batteries to provide experiment power.