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Science History
Edwin Hubble: The Astronomer Who Expanded the Universe
135 years since the birth of Edwin Hubble, who revealed other galaxies, demonstrated the universe's expansion, and paved the way for the Big Bang theory.
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Ask the expert
Why is the Night Sky Dark?
If the universe is infinite and filled with shining stars, we might expect a continuously bright sky. Why then is it dark at night?
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Brainwash
Brainwash - What is a Fjord?
Where is the uvula located? What is a tropical year? A challenging scientific trivia
