Mars rover snaps a selfie near skyscraper-sized boulders
Popular Science...
After five years of rolling across Mars, NASA’s Perseverance rover is still going strong. And it has the selfies to prove it. NASA highlighted its “six-wheeled scientist’s” latest Red Planet excursion in a mission update on May 12, explaining that the explorer is currently engaged in the Northern Rim Campaign. This is Perseverance’s fifth project since arriving on Earth’s planetary neighbor in February 2021. Compiled from 61 separate photos taken in March, the latest scene depicts Perseverance near a region known as Lac de Charmes.
“We took this image when the rover was in the ‘Wild West’ beyond the Jezero Crater rim—the farthest west we have been since we landed at Jezero a little over five years ago,” Perseverance project scientist Katie Stack Morgan said in a statement.
Prior to snapping its selfie, the rover had just finished abrading the rocky Arethusa outcrop. This task involves using the drill on its robotic arm to grind a section of the geological formation, which then offers scientists back on Earth the materials necessary to analyze its composition. After remotely examining the rock’s chemistry, researchers learned Arethusa is largely igneous minerals dating even further back than the Jezero Crater itself. The outcrop likely formed underground millions of years ago from molten material.
The latest portrait is the sixth selfie taken by Perseverance since arriving on Mars. To pull it off, the rover relied on its Wide Angle Topographic Sensor for Operations and eNgineering (WATSON) camera installed at the end of its robotic arm. It took about one hour to accomplish and required 62 extremely fine-tuned movements to ensure the clearest shot possible.
Lest anyone think Perseverance is too narcissistic, the rover also employed its Mastcam-Z to also photograph Lac de Charmes’ Arbot area a few days later. The vista scene is the result of 46 combined images, and will help NASA plot out a route to further investigate the ridge. Thanks to the new vantage points, scientists already think they have spotted a few megabreccia—massive chunks of rock as big as skyscrapers that were launched during a meteorite impact about 3.9 billion years ago.
“The rover’s study of these really ancient rocks is a whole new ballgame,” Stack Morgan explained. “These rocks—especially if they’re from deep in the crust—could give us insights applicable to the entire planet, like whether there was a magma ocean on Mars and what initial conditions eventually made it a habitable planet.”
The post Mars rover snaps a selfie near skyscraper-sized boulders appeared first on Popular Science.