Our Solar System! Our solar system was made about 4.6 billion years ago! Our inner planets are really small ,and mostly made of rock and metal. When it was 2008, there were 5 dwarf planets.

The sun The sun is at the center of our solar system. The sun is made of 74% hydrogen and 24% helium. The sun is the center star in our solar system.

mercury Mercury doesn’t have any atmosphere , so there’s no wind or any weather. Mercury is about the size of our moon.

venus Venus is about the same size as Earth, but a little smaller. Venus is the second largest inner planet.

earth Earth is a largest inner planet. Earth has 21% oxygen in its atmosphere.

mars A year on Mars is 320 days. Mars also has seasons like Earth, but mars have longer seasons and different degrees.

Asteroid belt Our asteroid belt is in between our inner planets and outer planets. Our asteroid belt was first discovered in 1801.

jupiter One reason people cannot be on Jupiter is it doesn’t have a solid surface. Jupiter’s size is 18,750 miles and 143,000 kilograms.

saturn Saturn has 7 flat rings. As of now Saturn has 52 moons.

uranus Uranus was named over 2,500 years ago. Uranus is the coldest planet in our solar system.

neptune Neptune is about 17 times larger than earth. Neptune is the most windiest planet.

(dwarf planet) pluto Pluto has only one moon and that’s Charon. Pluto only takes 6.4 days to spin on its axis.

stars Actually you know how blue means cold, well not with stars. When start are blue they are hotter, but when they are red they are colder.

Earth’s moon Earth orbits the sun, and the moon orbits earth. When our moon is full it makes Earth’s temperature higher.

Black hole Black holes cannot die they stay alive. Some people think black holes are made out of stars, but no one is quite sure yet.

Comets Comets are mostly made of ice and dust. Comets have a lot stuff inside of them it will take forever if I name them all.

asteroid Almost all asteroids stay in a group. Sometimes asteroids are made of platinum.

Space craft At the moment space crafts with people cannot get to Mars. A space craft wit people has only been on the Moon.

Earth’s axis In the USA for our winter it’s cold but on the other side of earth it’s summer for them. With Earth’s axis we have different time zones.

Galaxy There are a lot of galaxies out there other than the Milky Way. In the center of every galaxy there is a black hole.

Milky way In the middle of the Milky Way there is a black hole which will never die. If you look up at the night sky if could see 0.00000.5% of the Milky Way.

Telescope With a telescope you can see all the inner planets ,and some of the outer planets. During a meteor shower ,you could see shooting stars and comets.

Mars rover With in 23 feet anything in the Mars’ rovers way it will shoot it with a laser. It took eight months for the rover to get to Earth to Mars.

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