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Stuff about Space: Earth
Global Warming & Sea Level
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Moon rise
Everybody Jump!
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marital dispute
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Why Earth Has Land
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A weighty question
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The Moon in 1866
The Terminator
A Bird and the Rotating Earth
A Walk on the Beach - er, the Moon.
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Amount of gold required to paint the Moon?
turning into a moon
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When do you feel weightless in space?
flat topography and curving Earth
tides and gravity
What locks the Moon?
seeing how far the moon is
why does the Earth orbit?
Geostationary orbits
effect of Moon's orbit on the Earth
Would your weight decrease closer to the center of the earth?
Stable and Unstable Rotations: The Tennis Racket Theorem
What kinds of energy are associated with the earth-moon system?
gravity and planets' spin
Will tides go away in the future?
Stable orbits around the earth
Time periods of orbiting satelites
Sunlight and its components
The moon's surface is not smooth
avoiding collisions with the Earth
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What keeps the earth spinning?
Earth's gravitational and magnetic fields
changing mass of Sun
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losing the earth's atmosphere
Eclipse of the sun in Brisbane Austrailia
sources of tidal energy
Life without the Moon?
Months get longer
The dark side of the Moon
Why does the Moon orbit the Earth and not the Sun?
Lagrange points
why aren't WIMPs tightly clustered?
Flipping the Magnetic Field of the Earth
Earth staying slim
Rotational speed of the earth at the equator
starting a fire with moonlight
fate of the earth
Is the Earth unique?
Gravitational pull from the sun
viewing sky from moon
Weight on the moon
why do planets orbit almost in a plane?
how do tides work?
Weight vs. Mass
Moon Orbiting the Sun
red lunar eclipse
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Did we land on the Moon? Scientific evidence?
perspective on Earth
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"Stop the World - I Want to Get Off"
Earth's magnetic shield
spinning planets
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billion-person jump
Seeing the invisible?
cosmic questions
elliptical orbits
Two-Way Gravity
lunar tides
Sun shades in space
varying g
