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'Snowball Earth:' Entire planet was likely covered in ice more than 600 million years agoThis study presents the first physical evidence that Snowball Earth reached the heart of continents at the equator.' ...
Geologists found evidence in the way enigmatic sandstones called Tava formed in the Rocky Mountains hundreds of millions of ...
Using the James Webb Space Telescope, an international cooperation of NASA and the European and Canadian space agencies, a ...
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