Perseverance chief engineer, JPL, Adam Steltzner, gives remarks during a NASA Perseverance rover mission engineering and technology overview, Tuesday, Feb. 16, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. The Perseverance Mars rover is due to land on Mars Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

Perseverance chief engineer Adam Steltzner is seen during a NASA Perseverance rover initial surface checkout briefing, Friday Feb. 19, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. The Perseverance Mars rover landed on Mars Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

Perseverance chief engineer Adam Steltzner gives remarks during a NASA Perseverance rover initial surface checkout briefing, Friday Feb. 19, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. The Perseverance Mars rover landed on Mars Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

Perseverance chief engineer Adam Steltzner gives remarks during a NASA Perseverance rover initial surface checkout briefing, Friday Feb. 19, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. The Perseverance Mars rover landed on Mars Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

Perseverance chief engineer, JPL, Adam Steltzner, shows a sample tube that will hold sample core’s collected from the Mars surface during a NASA Perseverance rover mission engineering and technology overview, Tuesday, Feb. 16, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. The Perseverance Mars rover is due to land on Mars Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

Perseverance chief engineer, JPL, Adam Steltzner, shows a rover wheel during a NASA Perseverance rover mission engineering and technology overview, Tuesday, Feb. 16, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. The Perseverance Mars rover is due to land on Mars Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

With the launch period for the Perseverance mission opening July 17, 2020, members of NASA's Perseverance Mars rover project continue the mission's march to the launch pad while working from their home offices during the coronavirus outbreak. Clockwise from upper left: lead mobility systems engineer Rich Rieber (with son Ben); deputy project scientist Katie Stack Morgan; mission system verification and validation supervisor Ruth Fragoso; mission design and navigation manager Fernando Abilleira (below mission logo); staff assistant Monica Hopper; systems engineer Heather Bottom; project chief engineer Adam Steltzner; guidance and control systems engineer Swati Mohan; entry, Descent and Landing Phase Lead Al Chen (with son Max); project manager John McNamee; and Entry, Descent and Landing Systems Engineer Cj Giovingo. https://photojournal.jpl.nasa.gov/catalog/PIA23881

Members of NASA’s Perseverance rover team react in mission control after receiving confirmation the spacecraft successfully touched down on Mars, Thursday, Feb. 18, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

NASA and JPL Perseverance Mars rover mission management are seen during an engineering and technology overview, Tuesday, Feb. 16, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. The Perseverance Mars rover is due to land on Mars Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

Members of NASA’s Perseverance Mars rover management team meet via remote and in mission control, Thursday, Feb. 18, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

NASA and JPL Perseverance Mars rover mission management are seen during an engineering and technology overview, Tuesday, Feb. 16, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. The Perseverance Mars rover is due to land on Mars Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)

Mission management and scientist give remarks during a NASA Perseverance rover initial surface checkout briefing, Friday Feb. 19, 2021, at NASA's Jet Propulsion Laboratory in Pasadena, California. The Perseverance Mars rover landed on Mars Thursday, Feb. 18, 2021. A key objective for Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and be the first mission to collect and cache Martian rock and regolith. Photo Credit: (NASA/Bill Ingalls)