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Monday, March 18, 2019
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The First Creatures Evolved Amid The Most Horrifying Time On Earth

Around 700 million years ago, Earth transformed into a snowball. The polar ice sheets extended until the point that they overwhelmed the globe. The...

Three times researchers learned something new from solar eclipses, and three...

Next Monday's solar eclipse,  which ought to be noticeable over a wide swath of the mainland United States, has motivated millions to go to...