Lower gravity. Higher radiation. No ER access. These are just a few of the challenges that humans face in outer space. Emily and Regina talk to a NASA astronaut (and astronaut scientist) about the ...
Right above you is the sky – or as scientists would call it, the atmosphere. It extends about 20 miles (32 kilometers) above the Earth. Floating around the atmosphere is a mixture of molecules – tiny ...
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Does outer space end – or go on forever?
Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. What is beyond outer space? – Siah, age 11, ...
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