Nasca Lines may be giant map of underground water sources

American researcher David Johnson has advanced a theory that Nasca Lines may be related to water. He thinks that the geoglyphs may be a giant map of the underground water sources traced on the land.

Jazz Musician Collaborates With Birds and Whales

Rothenberg suggests that the birds he records with listen and respond to the human musicians. It's an interspecies jam session of sorts.

Thor's Helmet, NGC 2359

Thor's Helmet in Canis Major is about 15,000 lightyears distant. A large bright star near the helmet's center has created this interstellar bubble by the force of its "stellar wind". However, this star, known as a Wolf-Rayet star, may go supernova.

Beautiful image

'Complexity' of Neanderthal tools

Early stone tools developed by our species Homo sapiens were no more sophisticated than those used by our extinct relatives the Neanderthals.