There are only 15 possible pentagonal tiles, research proves

Tiling the plane with a single pattern is a mathematical problem that has interested humans since Antiquity, notably for the aesthetic quality of tiles in mosaics or tiling. One of the unresolved problems in this field that ...

Future planes to get a 'magic safety skin'

(PhysOrg.com) -- Despite the popular perceptions of plane travel, it is a relatively safe way to travel, and the folks over NASA are hoping to make it even safer. They have awarded four different research teams a total of ...

NASA seeing sprites (w/ Video)

High above the clouds during thunderstorms, some 50 miles above Earth a different kind of lightning dances. Bursts of red and blue light, known as "sprites," flash for a scant one thousandth of a second. They are often only ...

Image: Saturn's north pole basking in light

Sunlight truly has come to Saturn's north pole. The whole northern region is bathed in sunlight in this view from late 2016, feeble though the light may be at Saturn's distant domain in the solar system.

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