Harrison Schmitt credits the image to the entire Apollo 17 crew. While on the Moon's surface, Schmitt — the only geologist in the astronaut corps — collected the rock sample designated Troctolite 76535, which has been called "without doubt the most interesting sample returned from the Moon". Among other distinctions, it is the central piece of evidence suggesting that the Moon once possessed an active magnetic field. As he returned to the Lunar Module before Cernan, Schmitt is the next-to-last person to have walked on the Moon's surface. After the completion of Apollo 17, Schmitt played an active role in documenting the
Astronaut: The Last Push time progresses, the repairs fail to restore power, and the ship becomes cold. After a hallucination of his fellow astronaut jolts him awake, he makes one final effort to repair the ship which proves successful. As the ship rounds Venus, Michael dons his space suit and re-enters the damaged hibernation capsule for the first time since the accident. He looks out of the window in awe at the sight of Venus' atmosphere below him. After passing Venus, he successfully ignites the engines and is two years away from Earth. On arriving at Earth he only has to reignite the engines