volcanoes

(Newser) - Forget deep-space exploration; even basic questions about Earth still have scientists scratching their heads, LiveScience reports. A panel of geologists and planetary scientists lists its top lingering mysteries.

1. How did Earth form into such a distinct body?
2. What happened during Earth's first 500 million years?
3. How did life start on

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(Newser) - Climate change has sparked heated debate about the Earth’s surface, but a controversial new theory is directing scientists to its core, Der Spiegel reports. To explain why contintental plates drift on the surface of the Earth's molten mantle, Maruyama Shigenori, a leading geophysicist, argues that continents actually have life...