Join us as we explore the variety of robotic spacecraft in our solar system!

We have an intimate relationship with our sun. Its light and gravity profoundly effect our planet's motions, weather, oceans, and life, as well as all other objects in our solar system.

Join us as we explore ice and its properties, where it is located, and what it tells us about the planets and moons in our solar system. Check out the classroom and informal activities, resources and further information.

Join us as we explore this scientific process of gathering new data and formulating new ideas.

Join us to learn about the rare transits of Venus and learn more about how distant worlds are being discovered through the Kepler and other missions.

Join us as we explore one of the most fundamental questions: are we alone in the Universe?