The Big Thirst: Your Saliva Was Born In The Milky Way

In this installment, “The Big Thirst” author and Fast Company writer explains how every drop of water you’ll ever know, from the spigot to the toilet, is about 4.3 billion years old. Facts: Two things about water are indisputable. Water is the most familiar substance in our lives, its look and feel and appeal as routine as the spray of the shower or the splash of the kitchen faucet.

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The Big Thirst: Your Saliva Was Born In The Milky Way