Why alien hunters have spent 60 years finding new solutions for the Drake Equation
SANTA CRUZ, CALIFORNIA "Dad, did you ever imagine that your formula would become so famous?" I ask the kind-eyed, 91-year-old person next to me on the patio. My dad, Frank Drake, is quiet for a moment. Perhaps he's thinking back to the November day 60 years ago when he unceremoniously drafted a formula that went on to shape humankind's hunt for extraterrestrial civilizations. Publisher: Science Date: 11-30-2021 Twitter: @NatGeo Reference: (Read more) Visit Source Mysterious origin of Earth's water may be explained by solar wind | New Scientist The sun's solar wind may have played a key part in delivering water to Earth, solving a vexing mystery about where our planet's seas and oceans came from. Studies of meteorites have found them to be surprisingly rich in water, suggesting that early in our planet's history 4.6 billion years ago, incoming asteroids delivered water and allowed Earth to become the h...
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