Planetary scientist just reported that some water carved rocks high in the mountains probably were once covered in water for the planet of Mars. It is thought that billions of years ago a a giant lake could have been on Mars. On Mars there is a NASA Curiositym Rover . The rover is exploring Mars. It has found streams and ponds on the planet already. The reason there is so much interest in discovering if water ever existed on Mars is because the scientist will know if plant and life form ever existed there. The scientist have discovered a geometric pattern of rocks known as boxwork on Mt. Sharp. Boxworks would have had water to seeping into the cement sediments in the rock. This tells the scientist that water probably existed on mars billions
