Disappearing homing pigeon mystery solved

Homing pigeons are usually remarkably efficient navigators, however, on rare occasions, things go drastically wrong. So, when Jon Hagstrum of the US Geological Survey read in his local newspaper about two races when pigeons ...

Dwindling water levels of Lake Powell seen from space

After decades of drought, water levels in Lake Powell, the second-largest human-made reservoir in the United States, have shrunk to its lowest level since it was created more than 50 years ago, threatening millions of people ...

Hawaii's Kilauea volcano erupts

Hawaii's Kilauea volcano, one of the world's most active, has erupted but its lava so far is limited to its central crater and not threatening inhabited areas, authorities said Thursday.

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