Explore the Universe, from the Big Bang to our solar system. The Journey Into Space online investigation, and these articles connect to astronomy, meteorites, the Earth, and the forces that make collisions happen.
Introduce younger students to space objects and how gravity affects them. Then have them explore the effects of this force with the Gravity Game.
Could a space rock destroy life on Earth? Learn more about asteroids, comets, and other space objects and what happens when they collide—with each other and with our planet.
Gravity helps form the stars and planets and helps keep them in orbit. Yet, it can also cause these objects to collide. Explore the many ways gravity shapes—and reshapes—the universe.