Micah Sifry on American Renewal

Micah Sifry on American Renewal.

Live on Monday: Does the US need one billion people?

What would happen if you tripled the US population? Matthew Yglesias and moderator Charles Duhigg explore the idea on Big Think Live.

Big Think LIVE

Is immigration key to bolstering the American economy? Could having one billion Americans secure the US's position as the global superpower?

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Mars pole may be hiding salty lakes and life, find researchers

Researchers detect a large lake and several ponds deep under the ice of the Martian South Pole.

Getty Images
Surprising Science
  • Italian scientists release findings of a large underground lake and three ponds below the South Pole of Mars.
  • The lake might contain water, with salt preventing them from freezing.
  • The presence of water may indicate the existence of microbial and other life forms on the planet.
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In praise of nudity: The nudist beaches of Central and Eastern Europe

"Nothing but naked people: fat ones, thin ones, old, young…"

Photo by Jessica D. Vega on Unsplash
Culture & Religion
They lie on towels, blankets and mattresses, without wind screens, but under umbrellas.
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Mystery anomaly weakens Earth's magnetic field, report scientists

A strange weakness in the Earth's protective magnetic field is growing and possibly splitting, shows data.

ESA
Surprising Science
  • "The South Atlantic Anomaly" in the Earth's magnetic field is growing and possibly splitting, shows data.
  • The information was gathered by the ESA's Swarm Constellation mission satellites.
  • The changes may indicate the coming reversal of the North and South Poles.
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Crows are self-aware just like us, says new study

Crows have their own version of the human cerebral cortex.

Credit: Amarnath Tade/ Unsplash
Mind & Brain
  • Crows and the rest of the corvid family keep turning out to be smarter and smarter.
  • New research observes them thinking about what they've just seen and associating it with an appropriate response.
  • A corvid's pallium is packed with more neurons than a great ape's.
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