ASTRONOMY
'(<a href="http://www.j-archive.com/media/2011-03-07_J_25.jpg" target="_blank">Kelly of the Clue Crew shows an astronomical diagram on the monitor.</a>)  Created by millions of years of eruptions, <a href="http://www.j-archive.com/media/2011-03-07_J_25a.jpg" target="_blank">this</a> now-extinct Martian shield volcano is the tallest mountain in our solar system'
Olympus Mons