Thomas Y. Crowell, 1985. This book is about a telescope called Space Telescope. Space Telescope was one of the first telescopes sent out into space. The book told me how space telescopes work and what they look like on the inside. The book told me how people can work oil a space telescope in space.
Quasars look like stars but give off too much energy.
Pulsars, or neutron stars, give off radio waves. They look like blown-up stars. Our sun has been burning for over five billion years, and has enough energy to burn for another five billion years. The idea for my poster of tile Milky Way came from this book. In this galaxy there are around 200 billion stars.