How much space do you need to build a scale model of the Solar System if the Earth is only the size of a marble? Watch with students and ask: how does this change their understanding of the scale of the Universe? | OER Project

In the latest edition of the 10 Things blog, we present a week in the life of the solar system. From the sun to the Earth to Mars to Saturn--our fleet of robotic spacecraft captured all of these images during the course of just one week earlier this year. For details and more pictures, see: http://go.nasa.gov/1q0A4Fw | NASA Solar System Exploration