Im Maria Zuber,
a NASA scientist and a professor at the Massachusetts Institute
of Technology. As we explore the universe, we naturally ask, Is
there life on other planets? So far the answer is, We
dont know, but well keep searching. All life on
Earth needs liquid water to survive. Since spacecraft havent
found any liquid water on Mars, scientists think that there is no
life on the planets surface. But what about below the surface?
Spacecraft have discovered frozen water in Mars polar ice
caps and in clouds of ice crystals. This means that there might
be liquid water below the surface where its warmer. NASA plans
to explore Mars every 26 months. In future missions, well
explore below the surface and search for liquid waterand life!