I Wonder Why Stars Twinkle Book

What is the universe? 4

When did it all begin? 4

Will the universe ever end? 5

What is the Milky Way? 6

How many stars are there? 7

What are stars stars made of? 8

Why do stars twinkle? 9

Are stars star shaped? 9

What is a red giant? 10

Which stars eplode? 11

What is a black hole? 12

How hot is the Sun? 14

Will the Sun ever go out? 15

How many planets are there? 16

What is the difference between planets and stars? 17

Why is Earth so special? 18

Why does the Sun go out at night? 19

Which is the hottest planet? 20

Which is the red planet? 21

Which is the biggest planet? 22

Which planet is the farthest from the Sun? 24

Which planet is tipped over? 24

How do we know about the farthest planets? 25

Which planet has the biggest moons? 26

What is it like on our Moon? 26

Which planet's moons look like potatoes? 27

How fast can space rockets go? 28

What are rockets used for? 29

Why do astronauts wear space suits? 30

Why do astronauts float in space? 30

Index 32