Where Is Our Solar System? Our solar system consists of eight planets, as well as numerous moons, comets, asteroids, and meteoroids. For thousands of years, humans believed that Earth was at the center of the Universe, but all of that changed in the 17th century. Astronomers like Nicolaus Copernicus, Galileo Galilei, Johannes Kepler, and Isaac Newton proposed the unthinkable theory that Earth and the other planets actually revolved around the Sun. This engaging book chronicles the beginning of the modern age of astronomy, then follows later discoveries, including NASA's current missions in space.

Where Is the Amazon? Human beings have inhabited the banks of the Amazon River since 13,000 BC and yet they make up just a small percentage of the "population" of this geographic wonderland. The Amazon River basin teems with life—animal and plant alike. It's a rainforest that is home to an estimated 390 billion individual trees, 2.5 million species of insects, and hundreds of amazing creatures and plants that can either cure diseases, or, like the poison dart frog, kill with a single touch. Where Is the Amazon? reveals the amazing scale of a single rainforest that we are still trying to understand today and that, in many ways, supports our existence on this planet.

Where Are the Summer Olympics?The tradition of the Olympic Games faded over time until 1896, when they were brought back to life. The first modern Olympics were held in Athens, Greece, with over two hundred athletes from fourteen countries. Today, nearly three thousand years after the first Games, the Summer Olympics attract one hundred thousand top athletes from over two hundred countries. Billions of fans around the world cheer on their national teams to bring back the gold.

What Was the Age of the Dinosaurs? The Age of Dinosaurs began about 250 million years ago. In the beginning they were quite small but over time they evolved into the varied and fascinating creatures that captivate our imaginations today. What we know about dinosaurs is evolving, too! We've learned that some dinosaurs were good parents, that dinosaurs could grow new teeth when old ones fell out, and that most dinosaurs walked on two legs. We've even discovered that birds are modern relatives of dinosaurs!

What Was the Ice Age? Go back 20,000 years ago to a time of much colder global temperatures when glaciers and extensive sheets of ice covered much of our planet. As these sheets traveled, they caused enormous changes in the Earth's landscape and climate, leading to the evolution of creatures such as  giant armadillos, saber-toothed cats, and woolly mammoths as well as club-wielding Neanderthals and later the cleverer modern humans. Nico Medina re-creates this harsh ancient world in a vivid and easy-to-read narrative.

Where Is Mount Everest? As the recent deaths of sixteen Sherpas underscore, climbing Mount Everest remains a daunting challenge. Located in the Himalayas, Everest is the highest mountain in the world at a whopping 29,028 feet. In this compelling narrative, Nico Medina guides readers through the mountain’s ancient beginnings, first human settlers, historic climbs, and the modern commercialization of mountain-climbing.