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A Super Mercury was Smashed up 4.5 Billion Years Ago - Universe Today
Evolution of the impact three hours from the time of collision. Image credit: Horner et Al. Click to enlarge According to current models of planetary formation, Mercury has too much mass. A new explanation proposes that Mercury was created from a much larger parent planet that collided with a giant asteroid 4.5 billion years ago. … Continue reading "A Super Mercury was Smashed up 4.5 Billion Years Ago"