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Earth as a Habitable Planet

When viewed as a planet among planets, Earth is surprisingly surprising, considering how close it is to scientists' investigating eyes.

Living Stalactites and Other Geological Surprises

Dripstones in caves can be made by microbes, some speleologists find. That's among several recent geological surprises.

Geologists Warming Up to Catastrophic Floods

Megafloods larger than anything seen today are better concepts for explaining certain features on Earth and Mars.

Surprising Things Science Didn't Know

Scientists presume to speak with confidence about the origin of the universe and billions of years, but have been clueless about some everyday things close to home in the present.

Grand Canyon Demoted by New Discovery

A canyon longer than Grand Canyon has been discovered under the ice of Greenland. Scientists are surprised that it has persisted through the ice ages.
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