An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
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Pluto is smaller than Russia.
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The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
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A 100-pound person on Earth would weigh 38 pounds on Mars.
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Buzz Aldrin’s mother’s maiden name was Moon.
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