A 100-pound person on Earth would weigh 38 pounds on Mars.
102
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Jupiter is bigger than all the other planets combined.
254
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147