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The original was posted on /r/ufo by /u/matt73132 on 2025-11-07 04:48:14+00:00.

That’s an awfully big probe wouldn’t you say? If an alien civilization sent out an exploration probe, like we did, then wouldn’t it be extremely inefficient to build a 33 billion ton probe and then rocket it out into space? An advanced alien probe doesn’t need to weigh 33 billion tons. What else could it be then? Perhaps an abandoned alien mothership, that was evacuated for whatever reason and left to fly through space for millions or even billions of years.

I can’t believe that it would be a working mothership with aliens on board. It’s going way too slow for that. It would take it 21,000 to reach the closest star to us going at its current speed. I don’t think the aliens would be willing to wait millions of years between stars.