The Himalayas and the Andes are goldmines... for solar power

The world's coldest, tallest, and most forbidding mountains might soon be the new frontier of solar power. These tall, snow-capped peaks could retain way more sunlight than elsewhere, and the intense cold would actually make panels work more efficiently. » 10/18/11 5:00pm 10/18/11 5:00pm

Hear the haunting conch shells that helped rule the Andes long before…

Three thousand years ago, a civilization ruled the Andes Mountains of South America. Not much is known about this pre-Incan civilization, but we do know beautifully decorated conch shells were played like musical instruments and used as parts of religious ceremonies. Now archaeologists and acousticians have teamed up… » 2/07/11 5:00pm 2/07/11 5:00pm