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?
Ask An Earth and Space Scientist
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When people think of objects in the solar system, they might think about planets first. But there are so many other objects in space to explore.
Today, the air we breathe has lots of oxygen – over 20 percent! But that wasn’t always the case.
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.