Mars Reconnaissance Orbiter has a shallow radar instrument on board called SHARAD, which allows it to peer beneath the surface of Mars, revealing deposits of ice, rock layers, and geological interfaces. In order to make it fit, the instrument was installed on the side of the spacecraft, forcing it to roll 28° to operate and improve signal quality. Computer modeling suggested it would work even better if it rolled over 120°. Researchers tested this idea, and it worked!
[2505.21810] SHARAD Illuminates Deeper Martian Subsurface Structures with a Boost from Very Large Rolls of the MRO Spacecrafthttps://arxiv.org/abs/2505.21810