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An interstellar visitor may have changed the course of 4 solar system planets, study suggests
Compared with Mercury (whose orbit, within our planetary family, is the most egg-shaped and tilted), the paths of the four outer giant ... tweaked these planets' paths around 4 billion years ...
Ancient Asteroid Unlocks 4.6-Billion-Year-Old Magnetic Secrets of the Solar System
A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...