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Philosophy
In many city-states, it was perfectly acceptable for older men to have sexual relationships with young boys.
Harvard psychiatrist Robert Waldinger discusses how 80 years of ongoing research show relationships to be vital for health and happiness.
Human beings are tiny creatures compared to the 92 billion light-year wide observable Universe. How can we comprehend such large scales?
Hinduism emphasizes the journey, whichever path that takes. And it holds us responsible for our own self-improvement.
When boredom creeps in, many of us turn to social media. But that may be preventing us from reaching a transformative level of boredom.
The Athenian rich paid their taxes because they craved the social success of being perceived as "useful."
In 1920, astronomers debated the nature of the Universe. The results were meaningless until years later, when the key evidence arrived.
As time goes on, dark energy makes distant galaxies recede from us ever faster in our expanding Universe. But nothing truly disappears.
For nearly a century, physicists have argued over how to interpret quantum physics. But reality exists independent of any interpretation.
These five great books should prompt us to work on what needs fixing the most in the world: ourselves.
"The Da Vinci Code" popularized the idea that Christians stole much of their theology. It's wrong, especially regarding Christmas.
All the things that surround and compose us didn't always exist. But describing their origin depends on what 'nothing' means.
For years and over three separate experiments, "lepton universality" appeared to violate the Standard Model. LHCb at last proved otherwise.
If aliens are driven mostly by biological imperatives, humanity could be in big trouble if we ever meet technologically advanced beings.
To prevent overloading the memory system, the brain may have a mechanism that tosses out certain types of memories.
A concept known as "wave-particle duality" famously applies to light. But it also applies to all matter — including you.