# NASA InSight lander detects asteroids as they slam into Mars | Tech News (HT Tech) > Mars, by virtue of its tenuous atmosphere and proximity to our solar system's asteroid belt, is far more vulnerable than Earth # NASA InSight lander detects asteroids as they slam into Mars ## Mars, by virtue of its tenuous atmosphere and proximity to our solar system's asteroid belt, is far more vulnerable than Earth Sept 20 2022, 23:13 IST ![Follow on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/follow-us-facebook.png) ![Follow on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/follow-us-facebook-hover.png) ![Share](https://images.hindustantimes.com/tech/static/revamp/images/png/Share.png) ![Share](https://images.hindustantimes.com/tech/static/revamp/images/png/Shareclicked.png) ![Share on WhatsApp](https://images.hindustantimes.com/tech/static/revamp/images/png/whatsapp.png) ![Share on WhatsApp](https://images.hindustantimes.com/tech/static/revamp/images/png/whatsapp-hover.png) ![Share on Twitter](https://images.hindustantimes.com/tech/static/revamp/images/png/twitter.png) ![Share on Twitter](https://images.hindustantimes.com/tech/static/revamp/images/png/twitter-hover.png) ![Share on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/facebook.png) ![Share on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/facebook-hover.png) ![Bookmark](https://images.hindustantimes.com/tech/static/revamp/images/png/Bookmark.png) ![Bookmarked](https://images.hindustantimes.com/tech/static/revamp/images/png/Bookmarked.png) ![NASA InSight lander](https://images.hindustantimes.com/tech/img/2022/09/20/1600x900/370_insight-lander-PIA22743-16x9_(1)_1663674862530_1663674866687_1663674866687.jpg) ![icon](https://images.hindustantimes.com/tech/static/revamp/images/png/imageviewall.png) NASA InSight lander detects meteorite impacts on Mars using seismographic signals, the first time to be used outside of Earth. (NASA) ![Author Photo](https://images.hindustantimes.com/tech/static/revamp/images/png/HTTech-new-circle-logo.png) ### By REUTERS Mars, by virtue of its tenuous atmosphere and proximity to our solar system's asteroid belt, is far more vulnerable than Earth to being struck by space rocks - one of the many differences between the two planetary neighbors. Scientists are now gaining a fuller understanding of this Martian trait, with help from NASA's robotic InSight lander. Researchers on Monday described how InSight detected seismic and acoustic waves from the impact of four meteorites and then calculated the location of the craters they left - the first such measurements anywhere other than Earth. The researchers used observations from NASA's Mars Reconnaissance Orbiter in space to confirm the crater locations. Also read click here. "These seismic measurements give us a completely new tool for investigating Mars, or any other planet we can land a seismometer on," said planetary geophysicist Bruce Banerdt of NASA's Jet Propulsion Laboratory, the InSight mission's principal investigator. The space rocks InSight tracked - one landing in 2020 and the other three in 2021 - were relatively modest in size, estimated to weigh up to about 440 pounds (200 kg), with diameters of up to about 20 inches (50 cm) and leaving craters of up to about 24 feet (7.2 meters) wide. They landed between 53 miles (85 km) and 180 miles (290 km) from InSight's location. One exploded into at least three pieces that each gouged their own craters. "We can connect a known source type, location and size to what the seismic signal looks like. We can apply this information to better understand InSight's entire catalog of seismic events, and use the results on other planets and moons, too," said Brown University planetary scientist Ingrid Daubar, a co-author of the study published in the journal Nature Geoscience https://www.nature.com/articles/s41561-022-01014-0. The researchers believe that now the seismic signature of such impacts has been discovered they expect to find more contained in InSight's data, going back to 2018. The three-legged InSight - its name is short for Interior Exploration Using Seismic Investigations, Geodesy and Heat Transport - landed in 2018 in a vast and relatively flat plain just north of the Martian equator called Elysium Planitia. "The moon is also a target for future meteor impact detection," said planetary scientist and study lead author Raphael Garcia of the University of Toulouse's ISAE-SUPAERO institute of aeronautics and space. "And it may be the same sensors will do it, because the spare sensors of InSight are currently integrated in the Farside Seismic Suite instrument for a flight to the moon in 2025," Garcia added, referring to an instrument due to be placed near the lunar south pole on the side of the moon permanently facing away from Earth. Mars is about twice as likely as Earth to have its atmosphere hit by a meteoroid - the name for a space rock before it strikes the surface. However, Earth has a much thicker atmosphere that protects the planet. "So meteoroids usually break up and disintegrate in the Earth's atmosphere, forming fireballs that only rarely reach the surface to form a crater. In comparison on Mars, hundreds of impact craters are forming somewhere on the planet's surface every year," Daubar said. The Martian atmosphere is only about 1% as thick as Earth's. The asteroid belt, an abundant source of space rocks, is located between Mars and Jupiter. The scientific goals set for InSight ahead of the mission were to investigate the internal structure and processes of Mars, as well as studying seismic activity and meteorite impacts. InSight's seismometer instrument established that Mars is seismically active, detecting more than 1,300 marsquakes. In research published last year, seismic waves detected by InSight helped decipher the internal structure of Mars, including the first estimates of the size of its large liquid metal core, thickness of its crust, and nature of its mantle. Catch all the Latest Tech News, Mobile News, Laptop News, Gaming news, Wearables News , How To News, also keep up with us on Whatsapp channel,Twitter, Facebook, Google News, and Instagram. 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