* Astronomy

 CU-Boulder researchers catalogue more than 635,000 Martian craters

It's no secret that Mars is a beaten and battered planet -- astronomers have been peering for centuries at the violent impact craters created by cosmic buckshot pounding its surface over billions of years. But just how beat up is it?
Really beat up, according to a University of Colorado Boulder research team that recently finished counting, outlining and cataloguing a staggering 635,000 impact craters on Mars that are roughly a kilometre or more in diameter.
As the largest single database ever compiled of impacts on a planet or moon in our solar system, the new information will be of help in dating the ages of particular regions of Mars
Read more