The same brain cells that track location in space appear to also count beats in time. The research suggests that our thoughts may take place on a mental space-time canvas.
The physicist Subir Sachdev borrows tools from string theory to understand the puzzling behavior of high-temperature superconductors.
Bizarre quantum bonds connect distinct moments in time, suggesting that quantum links — not space-time — constitute the fundamental structure of the universe.
Like a visually ambiguous Necker cube, the famous Sleeping Beauty problem can be perceived in two seemingly valid ways.
Two leading candidates for a “theory of everything,” long thought to be incompatible, may be two sides of the same coin.
The irreversibility of time may be a clue as to what makes up the universe’s dark matter.
Coils and twirls in DNA’s double-helix change how the molecule behaves, opening a new role for topology in the study of life.
The solution to this month’s puzzle explains how to design a Sudoku square to figure out the likes and dislikes of four or eight finicky friends.
Three years ago, a solitary mathematician released an impenetrable proof of the famous abc conjecture. At a recent conference dedicated to the work, optimism mixed with bafflement.
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