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How Did X Become the Unknown (and so much else)?
X is everywhere and it’s probably thanks to math. But why is x the symbol for the unknown?
X is everywhere and it’s probably thanks to math. But why is x the symbol for the unknown?
How the CIA used Cold War technology to study and combat climate change
A cosmic soup hadn’t existed in 13.8 billion years. Now, scientists cook it up in a lab.
After a century of industrial pollution and superstorms, New York's waterways needs help!
Scientists have discovered the largest river on Earth, and it’s in the sky above.