In the first 20 million years of the Cambrian period, Earth experienced an explosion of life—a great evolutionary era dubbed ...
What If on MSN
What if Betelgeuse exploded and Earth felt the blast?
Betelgeuse is one of the most famous stars in the night sky. Sitting on the shoulder of the Orion constellation, this enormous red supergiant is nearly 950 times wider than the Sun. It has fascinated ...
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