Meteor Impacts on Mars Linked to Deep-Seated Marsquakes
New research reveals that meteoroid strikes on Mars generate seismic waves that travel deeper and faster through the planet than previously understood.
- Researchers identified a 21.5-meter-wide impact crater in the Cerberus Fossae region of Mars, correlating it with a marsquake detected by NASA's InSight lander.
- The seismic waves from the impact traveled through Mars' mantle, suggesting a 'seismic highway' that allows energy to travel deeper and faster than earlier models predicted.
- Using artificial intelligence, scientists analyzed tens of thousands of images from Mars orbiters to identify 123 new impact craters, 49 of which matched seismic events recorded by InSight.
- The findings indicate that meteoroid impacts on Mars occur 1.5 to 2.5 times more frequently than previous estimates, reshaping our understanding of Martian seismic activity.
- This research enhances knowledge of Mars' interior structure and informs future missions by assessing potential risks from meteoroid impacts to human and robotic explorers.