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Pondering the Possibility of Non-constant 'Constants'

What if the laws of physics aren't the same all over the universe, but vary from place to place? Michael Murphy of the Swinburne University of Technology discusses research published in the journal Physical Review Letters indicating that the value of one basic physical property, the fine structure constant, may vary with location in interstellar space.

Book Review: 'Garden Time,' W.S. Merwin

Our poetry reviewer, Tess Taylor, praises the most recent collection by W.S. Merwin called, Garden Time.

Dental Detectives: What Fossil Teeth Reveal About Ancestral Human Diets

From the thickness of tooth enamel to the molecular signatures on a tooth left behind by foods eaten by a human, fossil teeth hold many clues to the diets of our ancestors.

We've Seen This Election Before, In Classic Movies

It's life imitating art — election edition. A look at movies that have covered ground that's been well trod this campaign season, like A Face in the Crowd and The Lion in Winter and Ace in the Hole.

Researchers Build 'Nightmare Machine'

An MIT project rolled out just in time for Halloween uses artificial intelligence to generate horror images.

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