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Your search for "celestial sphere" returned 27 results
How Newton's Laws of Motion Work
science.howstuffworks.com/innovation/scientific-experiments/newton-law-of-motion.htm
Newton's iconic laws of motion are at work all around you, whether you're watching an Olympic swimmer push off a pool wall or a batter hit a baseball. So what are they?
What Is the Chandler Wobble?
science.howstuffworks.com/question442.htm
The Chandler wobble is the change in the spin of Earth on its axis. Learn more about the Chandler wobble at HowStuffWorks.
If You Think Jupiter Orbits the Sun, You're Mistaken
science.howstuffworks.com/jupiter-orbit-sun-barycenter.htm
Technically Jupiter does not orbit the sun's center. Learn more about Jupiter orbiting the sun in this HowStuffWorks Now article.
How the Moon Works
science.howstuffworks.com/moon.htm
The moon is the Earth's only natural satellite and the closest celestial object. Learn about the moon and some of the theories about the moon's origin.
How the Fermi Paradox Works
science.howstuffworks.com/space/aliens-ufos/fermi-paradox.htm
Are all the aliens hanging out without us?
Can You Guess if These Landmarks and Places Are on Mars or Earth?
play.howstuffworks.com/quiz/can-you-guess-if-these-landmarks-and-places-are-on-mars-or-earth
The Earth and the planet Mars are celestial siblings but hardly twins. Each has unique features and landmarks, but despite their significant differences, the two worlds share a lot of qualities. Do you know your Martian landmarks from your Earthly ones?
10 Things We Thought Were True Before the Scientific Method
Before the scientific method came along, science dabbled in some pretty far-out ideas in its youth. Remember miasmas? And spontaneous generation? And the four elements?
The Milky Way: Understanding Our Place in the Galaxy
science.howstuffworks.com/milky-way.htm
A look at the night sky at any time of year will reveal a faint band of light stretching across the sky -- our solar system's home, the Milky Way. How much do we really know about it?
Moon Trivia
play.howstuffworks.com/quiz/moon-trivia
We're finally heading back to the moon, and now is your chance to show off your skills. Test your lunar knowledge and see just how much of a moon expert you really are.
Can You Answer Each General Knowledge Question in Less Than 10 Seconds?
play.howstuffworks.com/quiz/can-you-answer-each-general-knowledge-question-in-less-than-10-seconds
This general knowledge quiz covers a range of subjects and will really put your brain into overdrive. Can you answer each question in 10 seconds or less? Good luck!