From Yahoo News/Space.com:Our solar system has a potentially violent future. New computer simulations reveal a slight chance that a disruption of planetary orbits could lead to a collision of Earth with Mercury, Mars or Venus in the next few billion years.
Despite its diminutive size, Mercury poses the greatest risk to the solar system's order. Results of the computer model show a roughly 1 percent chance that the elongation of Mercury's orbit will increase to the point where the planet's path around the sun crosses that of Venus. That's when planetary pandemonium would ensue, the researchers find, and Mercury could be ejected from the solar system, or collide with the sun or a neighboring planet, such as Earth.
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