WATCH: NASA’s Perseverance Rover Celebrates First Year On Mars By Learning to Run

By  //  February 20, 2022

NASA & SPACE NEWS

ABOVE VIDEO: Perseverance Lands on Mars, as the World Watches.

(NASA) – NASA’s Perseverance rover has notched up a slew of firsts since touching down on Mars one year ago, on Feb. 18, 2021, and the six-wheeled scientist has other important accomplishments in store as it speeds toward its new destination and a new science campaign.

Weighing roughly 1 ton, Perseverance is the heaviest rover ever to touch down on Mars, returning dramatic video of its landing.

The rover collected the first rock core samples from another planet, served as an indispensable base station for Ingenuity, the first helicopter on Mars, and tested MOXIE, the first prototype oxygen generator on the Red Planet.

Perseverance also recently broke a record for the most distance driven by a Mars rover in a single day, traveling almost 1,050 feet (320 meters) on Feb. 14, 2022, the 351st Martian day, or sol, of the mission.

It performed the entire drive using AutoNav, the self-driving software that allows Perseverance to find its own path around rocks and other obstacles.

The rover has nearly wrapped up its first science campaign in Jezero Crater, a location that contained a lake billions of years ago and features some of the oldest rocks Mars scientists have been able to study up close.

Rocks that have recorded and preserved environments that once hosted water are prime locations to search for signs of ancient microscopic life. (NASA image)

Rocks that have recorded and preserved environments that once hosted water are prime locations to search for signs of ancient microscopic life.

Using a drill on the end of its robotic arm and a complex sample collection system in its belly, Perseverance is snagging rock cores from the crater floor – the first step in the Mars Sample Return campaign.

“The samples Perseverance has been collecting will provide a key chronology for the formation of Jezero Crater,” said Thomas Zurbuchen, associate administrator of NASA’s Science Mission Directorate in Washington. “Each one is carefully considered for its scientific value.”

Counting the Eons

Two more samples will be collected in coming weeks from the “Ch’ał” rock type (named with the Navajo term for “frog”), a set of dark, rubbly rocks representative of what’s seen across much of the crater floor.

If samples of these rocks are returned to Earth, scientists think they could provide an age range for Jezero’s formation and the lake that once resided there.

Scientists can approximate the age of a planet or moon’s surface by counting its impact craters. Older surfaces have had more time to accumulate impact craters of various sizes.

In the case of the Moon, scientists were able to refine their estimates by analyzing Apollo lunar samples.

They’ve taken those lessons to narrow down the age estimates of surfaces on Mars. But having rock samples from the Red Planet would improve crater-based estimates of how old the surface is – and help them find more pieces of the puzzle that is Mars’ geological history.

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