Rob Grover, EDL Phase Lead, NASA JPL, holds a jar of good-luck peanuts as he and other Mars InSight team members monitor the status of the lander prior to it touching down on Mars, Monday, Nov. 26, 2018 inside the Mission Support Area at NASA's Jet Propulsion Laboratory in Pasadena, California. InSight, short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, is a Mars lander designed to study the "inner space" of Mars: its crust, mantle, and core. Photo Credit: (NASA/Bill Ingalls)