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History & Society
Trace how culture, power, and ideas shape societies across time.
After 15 years of monitoring 68 objects known as millisecond pulsars, we've found the Universe's background gravitational wave signal!
Michael Faraday's 1834 law of induction was the key experiment behind the eventual discovery of relativity. Einstein admitted it himself.
After Albert Einstein’s death in 1955, a pathologist—searching for the secret of genius—removed, dissected, and ultimately stole the mathematician’s brain.
In one experiment, the Viking landers added water to Martian soil samples. That might have been a very bad idea.
A cute mathematical trick can "rescale" the Universe so that it isn't actually expanding. But can that "trick" survive all our cosmic tests?
As the Earth spins and wobbles on its axis and revolves elliptically around the Sun, each day changes from the last. "24 hours" isn't right.
6mins
University College London professor Brian Klaas exposes the ugly truth about world leaders.
The farther away they get, the smaller distant galaxies look. But only up to a point, and beyond that, they appear larger again. Here’s how.
7mins
Primatologist Frans de Waal inadvertently popularized the term "alpha male." Now, he’s debunking common stereotypes to explain what an "alpha male" really is — empathetic and protective.