NASA's Curiosity Mars rover discovers evidence of ripples from an ancient Red Planet lake (images)
Today, we know of Mars as a cold, dry desert, with patches of subterranean ice and ice caps at its poles. Billions of years ...
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Scientists developed a new method for the perfect boiled egg, and you can test it at home
ET By Julianna Bragg, CNN Editor's note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news ...