Our solar system has eight planets, and five dwarf planets - all located in an outer spiral arm of the Milky Way galaxy called the Orion Arm.| NASA Science
Asteroids, comets, and meteors are chunks of rock, ice, and metal left over from the formation of our solar system about 4.6 billion years ago.| NASA Science
Europa Clipper is Earth's first mission to conduct a detailed science investigation of Jupiter's moon Europa.| NASA Science