2. Discovering Our Solar System Take a voyage that will guide you through the planets csun ENTER

3. The Solar System has nine planets that revolve around our Sun. The nine planets are: Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto The nine planets are: Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto Next

4. There are four inner planets which are:  Mercury Mercury  Venus Venus  Earth Earth  Mars Mars  Mercury Mercury  Venus Venus  Earth Earth  Mars Mars Next

5. There are four outer planets which are:  Jupiter Jupiter  Saturn Saturn  Uranus Uranus  Neptune Neptune  Pluto Pluto  Jupiter Jupiter  Saturn Saturn  Uranus Uranus  Neptune Neptune  Pluto Pluto Next

6. Mercury  Mercury is the planet closest to the Sun in our Solar System. This small, rocky planet has almost no atmosphere. During the long daytime, the temperature is hotter than an oven; during the long night, the temperature is colder than a freezer.  Mercury is the planet closest to the Sun in our Solar System. This small, rocky planet has almost no atmosphere. During the long daytime, the temperature is hotter than an oven; during the long night, the temperature is colder than a freezer. Next Home

7. Venus  Venus is the hottest in our solar system. The sulphuric acid clouds trap heat from the Sun. Venus has a poisonous atmosphere. This planet is also known as the "morning star" or the "evening star" since it is visible and quite bright at either dawn or dusk. Next

8. Earth  The Earth is the third planet from the Sun in our Solar System. It is the planet we evolved on and the only planet in our Solar System that is known to support life. Earth has one moon. Next

9. Mars  Mars, the red planet, is the fourth planet from the sun and the most Earth-like planet in our solar system. It is about half the size of Earth and has a dry, rocky surface and a very thin atmosphere. Rovers recently landed on the surface. Next

10. Asteroid Belt  There are many asteroid orbiting the sun between the planets Mars and Jupiter. It is believed to have been a planet that blew up or a planet that never formed. Next Home

11. Jupiter  Jupiter is the fifth and largest planet in our solar system. This gas giant has a thick atmosphere, 39 known moons, and a dark, barely-visible ring. Its most prominent features are bands across its latitudes and a great red spot (which is a storm). Next

12. Saturn  Saturn is the sixth planet from the sun in our solar system. It is the second-largest planet in our solar system. It has beautiful rings that are made mostly of ice chunks (and some rock) that range in size from the size of a fingernail to the size of a car. Saturn is made mostly of hydrogen and helium gas. Next

13. Uranus  Uranus is a huge, icy planet covered with clouds and is encircled by a belt of 11 rings and 22 known moons. Uranus' blue color is caused by the methane in its atmosphere; this molecule absorbs red light. Next Home

14. Neptune  Neptune is the eighth planet from the sun in our solar system. This giant, frigid planet has a hazy atmosphere and strong winds. This gas giant is orbited by eight moons and narrow, faint rings arranged in clumps. Next The giant blue spot visible on Neptune is a storm much like the one visible on Jupiter.

15. Pluto  Pluto is the last and smallest planet in our solar system. It is even smaller than our moon. Pluto has a moon of its own. It was just discovered in the 1930’s. Pluto is the only planet in our solar system that has not been visited by our spacecraft yet. We only have blurry pictures of its surface; even the Hubble Space Telescope orbiting the Earth can only get grainy photos because Pluto is so far from us. Next