America's new wonder: a record-breaking bridge

America's greatest technological achievement, the Hoover Dam, now has a soaring companion piece, a massive looming bridge held up by the longest arch in the Western Hemisphere.

Alex's aftermath brings flash flood watches to Texas

Tropical Depression Alex dissipated over the mountains of central Mexico, but his rainy remnants have moved into south, central and western Texas. The GOES-13 satellite is keeping an eye on Alex's remnants as they have prompted ...

CloudSat captures a sideways look at fading Lana

NASA satellites do some really cool things, like take a sideways look at a slice of a tropical depression. That's what CloudSat did with Lana in the Central Pacific.

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