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Sloths Slowly Cavort By Day Now
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Scientific American Endorses Joe Biden
We’ve never backed a presidential candidate in our 175-year history—until now
A NASA Probe May Have Found Signs of Life on Venus 40 Years Ago
Data from an old NASA mission to our sister planet may contain overlooked evidence for the gas phosphine, a potential biosignature
Is There Really Life on Venus? There’s Only One Way to Know for Sure
If phosphine detected on the planet next door is really a signature of alien biology, we can send a space probe to find out...
For Math Fans: A Hitchhiker’s Guide to the Number 42
Here is how a perfectly ordinary number captured the interest of sci-fi enthusiasts, geeks and mathematicians
Water on Mars: Discovery of Three Buried Lakes Intrigues Scientists
Researchers say they have detected a group of lakes hidden under the Red Planet’s icy surface
It’s the End of the World ... Somewhere
Extraterrestrials in existential trouble might be easiest to find—and also the most informative
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This 'Small World' Is Packed with Animated Beauty
Nikon’s Small World in Motion competition captures creatures and forces that are invisible to the naked eye.
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