Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Often called the ...
The Greek inventor Archimedes supposedly used mirrors to set fire to invading ships. To test the possibility, a middle-school student designed an experiment for his science fair. Using light bulbs and ...
The night sky is like a picture with lots of stars. Now people are getting really worried about what's happening to it.
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