Astronomers determine Mars may face more potentially hazardous asteroids than Earth
Phys.org -

A team of astronomers at Nanjing University has found evidence that Mars likely has more potentially hazardous asteroids in its path than Earth. In their study, posted on the arXiv preprint server, the group investigated the number of potentially hazardous asteroids that are big enough to cause a major impact should they strike Mars and compared them to similar estimates for Earth.

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