'Tube map' around planets and moons made possible by knot theory

Just as sat-nav did away with the need to argue over the best route home, scientists from the University of Surrey have developed a new method to find the optimal routes for future space missions without the need to waste ...

Researchers map 33 new big game migrations across American West

A new set of maps that document the movements of ungulates was published today in the fourth volume of the Ungulate Migrations of the Western United States. The maps in this collaborative U.S. Geological Survey report series ...

Tracing the spread of cacao domestication

The cacao tree (Theobroma cacao), whose beans (cocoa) are used to make products including chocolate, liquor and cocoa butter, may have spread from the Amazon basin to the other regions of South and Central America at least ...

Climbers to pay $13 fee on popular Mount Fuji trail

Hikers using the most popular route to climb Japan's Mount Fuji will be charged $13 each from July, with numbers capped to ease congestion and improve safety, a regional official said Tuesday.

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