Approximately 4.5 billion years ago, a cold cloud of gas and dust buried deep in one of the Milky Way galaxy’s spiral arms started to collapse. From there, gravity worked its magic. The cloud began to ...

ESS2.C: The Roles of Water in Earth’s Surface Processes Water is found in the ocean, rivers, lakes, and ponds. Water exists as solid ice and in liquid form. ESS2.A: Earth Materials and Systems (3-5) ...

The solar system walking tour was developed with the help of a multidisciplinary team that included about 10 graduate researchers who helped write and edit the information on the signs. The display ...

Where do we come from? How did our planet form? How do we know about the history of our solar system? You can explore these universal questions in the Moon, Meteorite and Solar System Gallery. Earth’s ...