NASA's Mars Reconnaissance Orbiter (MRO) has been orbiting the red planet since 2005, sending photos every month. In August it sent more than 1000 amazing photos, taking advantage of Mars and the Sun being on opposite sides of Earth's sky, this year on May 22. The pictures give scientist clues where to land in future expeditions, and a better picture of the topology of the planet.
This time, the direct line of sight between Mars and Earth coincides with Mars' equinox, the sun shines directly on the planet's equator, splashing light from north pole to south and giving the MRO its most complete views of the red planet. For the rest of the year, either the north or south pole is in constant darkness. - Popular Science
Most of us expect Mars to be mainly red and not very interesting to watch, but as you can see from the images the planet is rich with colours and diverse in landscapes. It's hard to believe it's a dead planet with so much going on on the surface.
See the complete catalogue of more than 40 000 high resolution images here.
Images source: NASA