Planet Earth is in the Milky Way Galaxy the cloudy band of light that stretches clear across the night sky But what is a galaxy made of How many galaxies are there in the universe For years astronomers thought that the Milky Way was the universe Now it is known that there are billions of galaxies and more is known of their shapes and sizes and what they consist of With informative text and clear illustrations best-selling author and illustrator Gail Gibbons takes the reader on a journey light-years away
