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
The Lady Astronaut of Mars The Lady Astronaut of Mars "The Lady Astronaut of Mars" is an alternate history/science fiction short story by Mary Robinette Kowal. It was first published in 2012 as part of the Audible.com anthology "Rip-Off". Thirty years after Elma York led the first expedition to Mars, she must choose between going on one last space mission or staying with her elderly husband as he dies. "The Lady Astronaut of Mars" was nominated for the 2013 Hugo Award for Best Novelette, but was disqualified on the grounds that, since it was originally presented in audio format, and Kowal had included stage directions