Volcanoes are found on other planets and moons across the solar system. The lava they erupt provides information on how other planets and moons formed.
The surface of lava can appear smooth, rough, jagged, and sometimes like a pile of construction rubble. What are the stories behind these surface features and how did they form?
Christy Till started out as a ballet dancer, but then became a geologist who studies magma and volcanoes. Watch her talk about studying magma and lava flows, and the time spans over which we can see changes related to volcanic eruptions.