The Moon was formed when it collided with Earth billions of years ago.
Sand blown by wind into ripples within Victoria Crater at Meridiani Planum on Mars, as photographed by NASA’s Mars Reconnaissance Orbiter on October 3, 2006.
NASA/JPL-Caltech/University of Arizona/Cornell/Ohio State University
Non-living nature such as rocks, landforms, soil and water form the Earth’s ‘geodiversity’ - a crucial part of the planet’s life support system.
Mercury in exaggerated colour. The dark blue areas are rich in carbon.
NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington