Underwater construction is a complex and difficult task, but engineers have developed several ways to build underwater … mostly by not building underwater at all.
Hunting for life on other worlds isn’t easy.
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It can be easy to mistake feelings like fear and anger as hate. When biases are acted out in harmful ways, however, speaking up can help stop hate from getting worse.
Thinking builds neural networks, which is why practice improves performance.
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Only male crickets have wing structures that produce sound, but females are very good at following the signal.
The number zero was a relatively recent and crucial addition − it allows numbers to extend in both directions forever.
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Manil Suri, University of Maryland, Baltimore County
Here’s a game: Tell a friend to give you any number and you’ll return one that’s bigger. Just add ‘1’ to whatever number they come up with and you’re sure to win.
Thousands of galaxies, each containing billions of stars, are in this 2022 photo taken by the James Webb Space Telescope.
NASA/ESA/CSA/STScI
Rock dust is only part of the story of soil. Living creatures, many of them too tiny to see, keep that soil healthy for growing everything from food to forests.
U.S. airlines carry more than 800 million passengers per year.
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People have been flying airplanes for well over a century. Engineers know how to balance all the forces at play, but still aren’t exactly sure how some of the physics of flight actually works.
The reason trees need sunlight is the same reason their leaves are green.
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Trees – and all plants – harvest sunlight to gain the energy they need to live and grow.
The queen, on the right with a larger, darker body, is bigger than the worker bees in the colony and lives several times longer.
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Stopping someone against their will can be false imprisonment or even kidnapping. There are laws that determine who is acting as a hero and who is acting as a vigilante.
Your blood’s natural limit to how much oxygen it can hold means you can’t stockpile it.
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Your immune system is often able to fend off pathogens it’s never seen before. But defending your body against all of them all at once is a tough challenge.