Most multitools are rectangular, but why should that one shape get to have all the fun? The Ti-Scout packs eight tools into a unique triangular form factor, which spreads the functionality across two ...

The Cygnus Loop is one of the most spectacular examples of a veiled stellar corpse that is accessible to small telescopes. Its visible streamers form the filamentary remains of an unknown supergiant ...

How a centuries-old math puzzle helped us see inside the human brain. By Steven Strogatz Photo illustrations by Jens Mortensen Each installment of “Math, Revealed” starts with an object, uncovers the ...