There Are More Galaxies in the Universe Than Seconds Since the Big Bang
The observable universe contains an estimated 2 trillion galaxies. The Big Bang occurred 13.8 billion years ago — but …
Your Body Contains Enough DNA to Stretch from Earth to Pluto 17 Times
Inside every one of your roughly 37 trillion cells lies about 2 meters of tightly coiled DNA. Stretched end to end, the total length is unfathomable: enough to span the solar system 17 times.
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