Patches of Snow on Mars

NASA’s Mars Reconnaissance Orbiter (MRO) acquired this image of Martian dunes almost free of their seasonal ice cover in the early summer. Only pockets of ice protected in the shade most of the day remain. The North Pole of Mars is surrounded by a vast sea of sand dunes. In this dune field, the dunes are covered by a […]

What is the temperature on Mars?

Mars is the fourth planet from the sun and since ancient times has been an object of great interest to mankind. Mars is about half the size of earth and its atmosphere is composed mostly of carbon dioxide and is very thin, exerting about 1/100 the surface pressure that the earth’s atmosphere exerts. The temperature […]