Terra: The Nature of Our World Terra: The Nature of Our World LifeOnTERRA ("TERRA: The Nature of Our World"), now in its tenth season, is the award-winning science and natural history podcast series that explores the natural connections that propel life on Earth. Overseen by graduate students in the MFA program in Science and Natural History Filmmaking at Montana State University, LifeOnTERRA distributes independently produced science, nature, cultural, and environmental films. The content of these podcasts are contributed by numerous independent filmmakers, lending their talent and voices to issues concerning life here on planet earth. Our World. Your Stories. The site provides a full archive of
Solar System Solar System The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight planets, with the remainder being smaller objects, such as the five dwarf planets and small Solar System bodies. Of the objects that orbit the Sun indirectly—the moons—two are larger than the smallest planet, Mercury. The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with