Did you know our solar system might have had an extra planet? Scientists believe a mysterious ninth planet once existed but got kicked out long ago! This "lost" planet could have been tossed into deep space during the early chaotic days of our solar system when massive planets were still shifting around. Jupiter or Saturn may have used their strong gravity to fling it away, sending it drifting into the unknown. If this planet is still out there, it could be wandering somewhere far beyond our reach. So, was our solar system supposed to have one more planet? Looks like the universe had other plans!

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