If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
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The earth travels through space at 660,000 miles per hour.
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The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
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On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
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