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Astronomy

Help Spot Galaxies

Although computer programs can be written to sort galaxies into general categories, they would inevitably throw out the unusual, the weird and the wonderful, astronomers say. Because the human brain is much better at recognizing patterns, astronomers launched a site this week recruiting the public to help identify spiral galaxies on sky photos. Instructions are […]

Math

Free Choice + Punishment = Cooperation

In a computer simulation of a multi-player game, cheaters didn't prosper when other participants could choose not to play.

Humans

From the July 10, 1937, issue

Photographing the earliest developmental stages of opossum eggs, a 'heavy electron' in cosmic rays, and teaching chimpanzees to use sign language.