New findings on mars11/2/2023 She was contributing writer for for 10 years before joining full-time. Why the Martian atmosphere thinned, how much water ran on the surface and whether habitable conditions were present are questions that still preoccupy scientists today.Įlizabeth Howell (she/her), Ph.D., is a staff writer in the spaceflight channel since 2022 covering diversity, education and gaming as well. These rovers form part of a generation-long network of landers, orbiters and other vehicles exploring the Red Planet to make sense of its complex history. 18, 2021 accompanied by the first-ever Martian helicopter, Ingenuity.) Today Sojourner serves as an important solar-powered ancestor for today's much larger, nuclear-powered rovers by NASA: Curiosity (about to hit its 10th Earth anniversary on Mars) and Perseverance (which touched down on Feb. On the right is a Mars Science Laboratory test rover the size of that project's Mars rover, Curiosity, which landed on Mars in August 2012. On the left is a Mars Exploration Rover Project test rover that is a working sibling to Spirit and Opportunity, which both landed on Mars in 2004. Front and center is the flight spare for the first Mars rover, Sojourner, which landed on Mars in 1997 as part of the Mars Pathfinder Project. A comparison of three generations of Mars rovers developed at NASA's Jet Propulsion Laboratory.
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