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Kick back and learn about our amazing universe through short animated science videos

ARTICLES

Learn about the most interesting topics in space with simple explanations, pictures and more 

TOP 10 LISTS

Browse ranked lists to learn about the biggest, farthest, fastest and wildest things in the universe

QUIZZES

Put your knowledge of space to the test with fun science quizzes for all ages and skill levels

LATEST VIDEOS

WHAT’S NEW?

How do we Know the Earth is 4.6 Billion Years Old?

Currently, scientists are quite confident in dating planet Earth at 4.6 billion years old. However, that is not to say we have not seen our share of shocking revelations on otherwise “bullet-proof” theories in past centuries (*cough* Earth-centered universe. (*cough,...

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How Do We Know Exoplanets Exist?

  Since the early 1990s when the first exoplanet discovery was technically confirmed, we have thirsted to locate more and more. Now, nearly 3,600 have been confirmed, with another 4,500 awaiting confirmation! Actually, you can check mankind’s exoplanet hunt...

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How Do We Know Black Holes Exist?

  Black holes are objects in space with gravity and density so strong, even light is unable to escape their grasp! Hence, the fitting name, black hole. Naturally, you might be asking yourself, “how do we know black holes exist?" After all, how do you "see"...

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“Two things are infinite: the universe and human stupidity; and I’m not sure about the universe.”

Albert Einstein

“I was born not knowing and have had only a little time to change that here and there.”

Richard Feynman

“The history of astronomy is a history of receding horizons.”

Edwin Hubble

“If you stare into the abyss, the abyss stares back at you.”

Friedrich Nietzsche

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