Hot-Donut Earth? Planet May Once Have Taken on Odd ‘Synestia’ Form

Earth probably became a “synestia” for a brief period about 4.5 billion years ago. That’s the term for a newly proposed cosmic object: a huge, hot, donut-shaped mass of vaporized rock that results from the collision of two planet-size bodies.

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from Innovation and Digital Marketing http://www.livescience.com/59211-earth-was-hot-donut-4-billion-years-ago.html?utm_source=rss&utm_medium=rss