A wild theory claims the presidency of Donald Trump was foretold a century ago, and that the first family has used time travel to alter history.

A growing field of research suggests that some medical treatments, such as cancer therapy or vaccines, might be more ...

Letters to the editors for the December 2025 issue of Scientific American ...

GPS spoofing is distorting vessel positions and deepening the risk in one of the world’s most important shipping lanes ...

Can you crack Killer Sudoku's mathematical twist? Try our classic expert Sudoku here. The objective of Sudoku is to fill each row, column and sub-grid with exactly one of each number from 1-9. In ...

Solve the grid in our daily easy Sudoku puzzle! Try medium Sudoku here. The objective of Sudoku is to fill each row, column and sub-grid with exactly one of each number from 1-9. A conflict arises if ...

Solve the grid in our daily expert Sudoku puzzle! Try a game with a mathematical twist, Killer Sudoku, here. The objective of Sudoku is to fill each row, column and sub-grid with exactly one of each ...

Researchers on Cape Cod, Mass., recently discovered the oldest known recordings of whale sounds and believe the discovery could help scientists understand how the animals communicate ...

The Trump administration wants to boost manufacturing of glyphosate, the world’s most common weed killer. Here’s what that could mean for health ...