What Is Unusual About the Motion of Phobos, as Seen

question 105

Essay

What is unusual about the motion of Phobos, as seen from the surface of Mars?

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Definitions:

Tibialis Anterior

A muscle located in the front part of the lower leg, responsible for dorsiflexion and inversion of the foot.

Inverts

Informal term for invertebrates, which are animals that do not have a backbone or spinal column.

Longest Muscle

The Sartorius muscle, extending from the hip to the knee, recognized as the longest muscle in the human body.

Sartorius

The longest muscle in the human body, running from the hip to the knee, and aiding in flexing, abduction, and lateral rotation of the thigh.