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12 Disappearing Glaciers Around the World

Calving is one way that glaciers lose ice.

12 Disappearing Glaciers Around the World

12 Out-of-This-World Facts About Carl Sagan

Hulton Archive/Getty Images

12 Out-of-This-World Facts About Carl Sagan

15 Electrifying Facts About Jellyfish

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15 Electrifying Facts About Jellyfish

The Science Behind Our Pumpkin Spice Obsession

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The Science Behind Our Pumpkin Spice Obsession

This Self-Cleaning Water Bottle Uses UV Light To Remove Bacteria And Viruses From Drinking Water

WAATR/Kickstarter

7 Hilarious Footnotes From Mary Roach's New Book, Fuzz: When Nature Breaks the Law

Jen Siska (author photo), W.W. Norton (book cover)

Here's What Really Happens When You Swallow Gum

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10 of the Scariest-Looking Animals in Existence

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NASA’s Perseverance Rover Just Collected the First-Ever Rock Sample From Mars

The core sample seen in its not-yet-sealed titanium tube.

The Reason Heat Makes You So Tired

This can't be comfortable.

24 Fascinating Facts About the Solar System

Photos.com/Getty Images Plus

Koalas Have Fingerprints That Are Nearly Indistinguishable From Ours

Freder Via Getty Images

Octopuses Will Throw Things to Scare Off Unwelcome Guests

You want trouble? You can get trouble.

Listen to the Mysterious Sound of the Northern Lights

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What Causes Eye Floaters?

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Appetite for Distraction: Does Watching TV Make You Hungrier?

Watching television can influence how much we eat.