Mon, Jun 27, 2016, 03:26 PM
America's National Aeronautics and Space Agency (NASA) scientists discovered an unexpected mineral, tridymite, on Mars. The discovery was made on the examination of rock sediments from Mars. Tridymite is formed only in high temperatures during a particular kind of volcanic eruptions. The mineral is found at a few places on Earth. The discovery might make scientists rethink about the evolution of Mars.