Recent research has unveiled that Mars encounters a meteorite strike nearly every day, far exceeding previous estimates. Data collected from NASA’s InSight mission indicates this occurrence, analyzed through the planet’s seismic activity, known as “marsquakes”.
Published in Nature Astronomy, the study titled ‘A new estimate of the impact rate on Mars from Very High-Frequency Marsquake statistics’ reveals that Mars experiences between 280 to 360 impacts annually from meteorites about the size of basketballs. These impacts typically create craters wider than eight meters (26 feet) and induce surface tremors.
Natalia Wojcicka from Imperial College London highlighted the study’s significance in understanding Mars’ geological timeline and evolution. She described the seismic data as a “cosmic clock” for dating Martian surfaces and potentially other planets within the Solar System, as reported by Space.com.
The findings also bear implications for Earth’s safety, offering insights into meteorite risk assessment for future Mars missions, both robotic and manned. Ingrid Daubar from Brown University emphasized the broader scope of planetary impact studies across the Solar System, aiming to compare Martian impacts with those on Earth.
This research marks a significant advancement over previous methods reliant on orbital imagery for crater analysis, enhancing the understanding of surface ages on Mars and other celestial bodies.
