Investigating forces, energy, and Earth's place in the universe.
Our solar system is made up of the Sun, eight planets, moons, asteroids, and comets. Earth is just one small part of this amazing neighborhood!
Each planet travels around the Sun in an orbit. Some, like Mercury, go fast and close to the Sun; others, like Neptune, take much longer.
There are billions of other stars, and many have their own planets. The universe is huge and full of mysteries waiting to be explored.
Jupiter is the largest planet in our solar system.
The Hubble Space Telescope takes pictures of distant galaxies.
Earth is part of a vast solar system, which is just a tiny part of the universe.