SMRTR Science & EngineeringOct 27, 2025Interesting Engineering

3I/ATLAS: Oldest comet ever seen heading for the Sun, sparking wild alien theories

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The interstellar comet 3I/ATLAS, discovered traveling at 130,000 mph and roughly Manhattan-sized, reached its closest point to the Sun this week as the largest interstellar object ever observed in our solar system. While Harvard's Avi Loeb controversially claims it could be an alien mothership, NASA and astronomers confirm it's simply a comet from another star system.

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