NASA’s Perseverance Mars Rover Gets Its Wheels and Air Brakes (Study)

After the rover was shipped from JPL to Kennedy Area Heart, the staff is getting nearer to finalizing the spacecraft for launch later this summer time.

Remaining meeting and testing of NASA’s Perseverance rover continues at Kennedy Area Heart in Florida because the July launch window approaches. In a few of the final steps required previous to stacking the spacecraft parts within the configuration they will be in atop the Atlas V rocket, the rover’s wheels and parachute have been put in.

Perseverance acquired its six flight wheels on March 30, 2020. Whereas the rover took a check drive final December, it was on “flight spares” that would not be making the journey to Mars. Designed for the form of off-roading Perseverance will carry out on the Crimson Planet, the wheels are re-engineered variations of those NASA’s Curiosity has been utilizing on its traverses of Mount Sharp.

Illustrated right here, the aluminum wheels of NASA’s Curiosity (left) and Perseverance rovers. Barely bigger in diameter and narrower, 20.7 inches (52.6 centimeters) versus 20 inches (50.eight centimeters), Perseverance’s wheels have twice as many treads, and are gently curved as a substitute of chevron-patterned. Credit score: NASA/JPL-Caltech
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Machined out of a block of flight-grade aluminum and outfitted with titanium spokes, every wheel is barely bigger in diameter and narrower than Curiosity’s, with skins which can be virtually a millimeter thicker. Additionally they function new treads, or grousers: Instead of Curiosity’s 24 chevron-pattern treads are 48 gently curved ones. In depth testing within the Mars Yard at NASA’s Jet Propulsion Laboratory, which constructed the rover and manages operations, has proven these treads higher face up to the stress from sharp rocks and grip simply as effectively or higher than Curiosity’s when driving on sand.

The Parachute

The job of including Perseverance’s parachute to the again shell, the place the rover might be stowed on the journey to the Crimson Planet, took a number of days and was completed on March 26. Tasked with slowing the heaviest payload within the historical past of Mars exploration from Mach 1.7 to about 200 mph (320 kph) through the rover’s touchdown on Feb., 18, 2021, the 194 kilos (88 kilograms) of nylon, Technora and Kevlar fibers are packed so tightly right into a 20-inch-wide (50-centimeter-wide) aluminum cylinder that it’s as dense as oak wooden. When deployed at about 7 miles (11 kilometers) above the Martian floor, the chute will take a couple of half-second to completely inflate its 70.5-foot-wide (21.5-meter-wide) cover.  

The Perseverance rover is a robotic scientist weighing 2,260 kilos (1,025 kilograms). It would seek for indicators of previous microbial life, characterize the planet’s local weather and geology, accumulate samples for future return to Earth, and pave the best way for human exploration of the Crimson Planet. It doesn’t matter what day Perseverance launches throughout its July 17-Aug. 5 launch interval, it would land on Mars’ Jezero Crater on Feb. 18, 2021.

Perseverance is a component of a bigger program that features missions to the Moon as a strategy to put together for human exploration of the Crimson Planet. Charged with returning astronauts to the Moon by 2024, NASA will set up a sustained human presence on and across the Moon by 2028 by way of NASA’s Artemis lunar exploration plans.

For extra details about the mission, go to:

For extra about NASA’s Moon to Mars plans, go to:

Information Media Contact

DC Agle
Jet Propulsion Laboratory, Pasadena, California
[email protected]

Gray Hautaluoma / Alana Johnson

NASA Headquarters, Washington

202-358-0668 / 202-358-1501

[email protected] / [email protected]


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