Top 10 Weirdest Facts About the Solar System
The solar system is a bizarre place with its alien planets, mysterious moons and strange phenomena that are so out-of-this-world they elude explanation. Scientists have discovered ice-spewing volcanoes on Pluto, while Mars is home to a truly "grand" canyon the size of the United States. There may even be a giant, undiscovered planet lurking somewhere beyond Neptune. Read on to find out some of the strangest facts about planets, dwarf planets, comets and other incredible objects around the solar system. 1.Mars has the biggest volcano NASA Olympus Mons is a very large shield volcano on the planet Mars. The volcano has a height of over 21 km as measured by the Mars Orbiter Laser Altimeter. Olympus Mons is about two and a half times Mount Everest's height above sea level. 2.Mars also has the longest valley NASA/JPL-Caltech Valles Marineris is a system of canyons that runs along the Martian surface east of the Tharsis region. At more than 4,000 km long, 200 km wide and up to...