An ice core about two miles long -- the oldest frozen sample ever drilled from the underbelly of Antarctica -- shows that at no time in the last 650,000 years have levels of the greenhouse gases ...
SAN DIEGO, March 27 (UPI) -- New government laboratory test results are fueling a controversial contention that a giant natural nuclear reactor at the center of the Earth powers the planet's ...
Scientists have long known that Earth and Mercury have metallic cores. Like Earth, Mercury's outer core is composed of liquid metal, but there have only been hints that Mercury's innermost core is ...
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