Period: 3

Astronomy by: Basher and Dan Green.

  Solar System: There are 8 planets, the sun, the, moons, asteroids, comets, Medeorids and more. The solar system also contains the hottest planet called Mercury. This planet is so close to the sun that it is like a 27 million degree fire ball. The planet called Pluto is the farthest from the sun that it is also the coldest planet in the solar system. Those were some of the amazing things that I learned in this chapter. The Inner circle contains planets that we know about like Mercury and Pluto. These are jest some of the planets that are in the inner circle. The book also talks about Mars rovers and Mars.                                                                                                                                                                            These planets have something in common with each other. They are in our solar system, they contain something that all planets have, a core to keep things stable. The Universals have the big bang, WMAP, Dark Matter, Dark Energy, and lets not forget the Space Time. The big bang happened in about 13.7 billion years ago. It is why the universe is expanding. The WMAP is a microwave in space. It can tell us how the universe was a long time ago. WMAP stands for Wilkinson Microwave Anisotophy Probe. It measures the  glow of the universe's ancient heat. Dark matter is a big chunk of matter in the universe. It could be a new type of matter. A map of this dastardly elusive was made in 1997. The last thing that there is the Space Time. It is a 4D beast that can bend time. Thats what is in the book of Astronomy.

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