When you look up at the night sky, you may see dots of light zooming past. You might think these are shooting stars. But actually, they're satellites! Every day, thousands of satellites orbit our planet, and they all have important jobs to do. In this book, you'll read about Juno, Aura, and more--each with their own special missions. Combining Earth Science and the latest in space technology, this fascinating and reassuring read proves that there has never been a better time to learn about our "eyes in the sky." -- Back cover.