The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
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Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
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The sun is 330,330 times larger than the earth!
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A 100-pound person on Earth would weigh 38 pounds on Mars.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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