Scientists complete top quark puzzle

Scientists on the CDF and DZero experiments at the U.S. Department of Energy’s Fermi National Accelerator Laboratory have announced that they have found the final predicted way of creating a top quark, completing a picture of this particle nearly 20 years in the making.

Undersea mountains provide crucial piece in climate prediction puzzle

A mystery in the ocean near Antarctica has been solved by researchers who have long puzzled over how deep and mid-depth ocean waters are mixed. They found that sea water mixes dramatically as it rushes over undersea mountains in Drake Passage - the channel between the southern tip of South America and the Antarctic continent. Mixing of water layers in the oceans is crucial in regulating the Earth's climate and ocean currents.

Scientists develop 'mathematical jigsaw puzzles' to encrypt software

UCLA computer science professor Amit Sahai and a team of researchers have designed a system to encrypt software so that it only allows someone to use a program as intended while preventing any deciphering of the code behind it. This is known in computer science as "software obfuscation," and it is reportedly the first time it has been accomplished.

Chimps like brain-teasers too

Just as you or I might enjoy doing a crossword puzzle, so too do chimps enjoy completing tricky puzzles, just for the hell of it.

Hubble solves a galaxy puzzle in the constellation of Centaurus

The Universe often fools our eyes, offering the false impression that celestial objects are located at the same distance from Earth.