Layers of ice on the inner edge of a crater provide information about climatic changes over the past 1.4 million years. This was caused by fluctuations in the axis of rotation and the shape of the orbit.
The paths of the planet Mars have always puzzled astronomers. It moves across the sky at different speeds – sometimes even in a loop. Johannes Kepler first found a plausible explanation for the causes of this strange behavior more than 400 years ago: Our neighboring world moves around the sun like all other planets - on an elliptical orbit, not on a circular one, as Nicolaus Copernicus thought....
