NASA Change: Arapaho Glacier, Colorado (1898) The Aprapaho Glacier in Colorado in 1898. (NASA) NASA has been tracking Earth's changes from space for decades, but thanks to its"Images of Change" series, we now have access to some of the space agency's best visuals cataloging decades of transformation on the planet's surface. And of all that change, maybe no other thing is as mercurial as Earth's ice. to glaciers, Earth's frozen water moves and changes rapidly, particularly due to climate change....

Sao Paulo, Brazil's largest city, is still reeling from its worst drought in more than 80 years halfway through the wet season, with below average rainfall totals doing little to ease the dire state of the city's reservoirs. Government officials and residents alike invested much hope in a boisterous wet season to help pull the area out of drought. So bad is the drought, that back in October, Vincente Andreu, president of Brazil's National Water Agency, “If it doesn’t rain,...

Hundreds of birds in the San Francisco Bay area have been turning up dead or dying since Friday, coated with a light gray, odorless, gooey substance that scientists still haven't identified. "We've never seen anything quite like it," California Department of Fish and Wildlife spokesman Andrew Hughan told the Associated Press. "So it's a mystery for the moment." About 200 birds have been killed by the substance so far, a number that could rise because of the complexity of the...