A jar of nuts is seen inside the Mission Control Area (MSA) where teams are starting to gather for the Mars InSight landing, Monday, Nov. 26, 2018 inside the Mission Support Area at NASA's Jet Propulsion Laboratory in Pasadena, California. Good-luck peanuts made their first appearance at the Jet Propulsion Laboratory's Space Flight Operations Facility in 1964 during the Ranger 7 mission. 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)

A jar of nuts with the Mars Cube One (MarCO) logo is seen inside the Mission Control Area (MSA) where teams are starting to gather for the Mars InSight landing, Monday, Nov. 26, 2018 inside the Mission Support Area at NASA's Jet Propulsion Laboratory in Pasadena, California. Good-luck peanuts made their first appearance at the Jet Propulsion Laboratory's Space Flight Operations Facility in 1964 during the Ranger 7 mission. 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)

Monitors show the status of NASA's Deep Space Network ahead of the Mars InSight landing, Monday, Nov. 26, 2018 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)