Gravity and Weightlessness: Why Astronauts Float in Space

The video explains gravity as a universal force discovered by Sir Isaac Newton, which keeps objects grounded on Earth. It discusses the absence of gravity in space, causing astronauts to float and experience space sickness. The video also highlights Neil Armstrong's historic moon landing in 1969.

Why do astronauts float in space?

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What did Sir Isaac Newton discover about gravity?

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What are some effects of gravity on the human body in space?

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What is space sickness and how does it affect astronauts?

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Who was the first person to walk on the moon and when did it happen?

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