NASA has recorded the most powerful volcanic eruption in history on Jupiter's moon Io. New images acquired by the Juno spacecraft provide insight into the nature of the moon.

NASA's Juno spacecraft has spotted the most powerful volcanic eruption ever seen on the solar system's most volcanic body, ...

For decades, scientists believed that magma chambers beneath volcanoes were transient, forming before an eruption and then ...

But how well do you really know our planetary neighbor? This quiz of 15 questions will test your knowledge of Mars' size, surface and history, as well as scientists' attempts to study it. Remember to ...