"The latest release of Orbiter Space Flight Simulator has been published today. The first major release for six years, this edition introduces support for planetary surface elevations and an improved surface collision model. Together with higher resolutions for surface textures and improved visualization of water surfaces, this provides a significant step forward in visual quality of the simulation" Check this PDF for the complete release statement. http://orbit.medphys.ucl.ac.uk/press/pressrelease2016.pdf http://orbit.medphys.ucl.ac.uk/