Japan's volcanoes: Could Fuji be next?

The sudden eruption of Mount Ontake over the weekend, which is believed to have killed at least 31 people, was a reminder of Japan's vulnerability to its many active volcanoes.

Enigmatic Viking fortress discovered in Denmark

It is the first time for over 60 years that a new Viking fortress is found in Denmark, says curator Nanna Holm of The Danish Castle Centre. Søren Sindbæk, professor of medieval archeology at Aarhus University, explains: ...

Stonehenge was ancient rave spot, new theory says

British researchers on Saturday unveiled a new theory for the origins of Stonehenge, saying the ancient stone circle was originally a graveyard and venue for mass celebrations.

The race is on in 2nd Atacama solar challenge

Fifteen solar cars from Chile, Argentina, Venezuela and India set off Thursday on a 1,300-kilometer (800-mile) race through the uber-dry Atacama Desert in the second Atacama Solar Challenge.

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