Interesting science this may be, but it's also a warning. All indications are that we'll be sending a human expedition to Mars sometime around the 2030's - whether that be a NASA mission, via Elon Musk's SpaceX Interplanetary Transport System or an expedition led by another nation, like China - and if we play our cards right, we may establish a permanent human presence soon after. But Mars will be a harsh extraterrestrial home that will require a momentous effort to create sustainable habitats.
RELATED: Mars Hit by Cosmic Buckshot, Again
As Mars' atmosphere is approximately 100 times thinner than Earth's, more meteors that streak through the atmosphere make it to the ground as meteorites. And in many cases, the atmosphere isn't quite thick enough to burn-up incoming space rocks, but thick enough to cause them to break up into many pieces. So rather than getting hit by a single projectile, depending on the size of the meteor, many bits of projectile can blanket bomb a large area.
For our future Mars colonists living in pressurized habitats on the surface - which, for the most part, would be vulnerable to falling rocks - it would be a grim reality of taking your chances of being hit by a single meteorite or by many pieces of meteorite, the cosmic equivalent of trying to dodge a bullet or buckshot from a shotgun. Neither is a good scenario, but you're more likely to get hit by the buckshot.