3. Europa is the fourth largest moon of Jupiter and is a little smaller than the Earth’s moon. It has a thin outer layer of ice. Most of the surface is smooth with very few craters but there are dark streaks and pits on its surface. Some scientists think that Europa has a deep liquid ocean under its icy shell. It is possible that life could exist in the water there. This picture is from information taken from NASA’s Galileo missions. http://galileo.jpl.nasa.gov Europa
4. Space has many large plants one is Jupiter For all its size and mass, Jupiter sure moves quickly. In fact, the planet only takes about 10 hours to complete a full rotation on its axis. And because it's spinning so rapidly, the planet has flattened out a little and is bulging at its equator. In fact, points on Jupiter's equator are more than 4,600 km further from the center than the poles. This rapid rotation also helps generate Jupiter's powerful magnetic fields, and contribute to the dangerous radiation surrounding it .
5. Mars Mars is the fourth planet from the sun. The planet is one of Earth's "next-door neighbors" in space. Earth is the third planet from the sun, and Jupiter is the fifth. Like Earth, Jupiter, the sun, and the remainder of the solar system, Mars is about 4.6 billion years old. Mars is named for the ancient Roman god of war. The Romans copied the Greeks in naming the planet for a war god; the Greeks called the planet Ares (AIR eez). The Romans and Greeks associated the planet with war because its color resembles the color of blood. Viewed from Earth, Mars is a bright reddish-orange. It owes its color to iron-rich minerals in its soil. This color is also similar to the color of rust, which is composed of iron and oxygen.
6. The moon Moon is Earth's only natural satellite and the only astronomical body other than Earth ever visited by human beings. The moon is the brightest object in the night sky but gives off no light of its own. Instead, it reflects light from the sun. Like Earth and the rest of the solar system, the moon is about 4.6 billion years old. The moon is much smaller than Earth. The moon's average radius (distance from its center to its surface) is 1,079.6 miles (1,737.4 kilometers), about 27 percent of the radius of Earth.
