NASA - Earth and Mars As Different As They Are Alike

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NASA - Earth and Mars As Different As They Are Alike

NASA - Earth and Mars As Different As They Are Alike
English | PDF | 1.12MB

Interest in Mars, the fourth planet from the Sun, began long before people were able to send spacecraft to the Red Planet. Even early astronomers were able to see Marsí brightness and position changes in the sky. With the invention of powerful telescopes, scientists were able to see the surface of Mars for the first time. Today, we send robotic missions to Mars to study its surface. These missions have shown us that Marsí solid surface is much like that of Earth. Mars missions will launch about every two years, to gain a better understanding of Marsí geologic history and search for evidence of past or present life.
This wallsheet presents summaries of classroom-appropriate activities to help students grasp basic concepts about Earth and Mars and their place in the Solar System

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