this post was submitted on 01 Sep 2025
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The person who made this has no idea how big space is. It would take tens or hundreds of billions of years for Dimorphos to reach a star system, if it was a kinda close one. The Voyager 2 probe will go past the star Ross 248, which is 10.3 light years from us, in about 42,000 years with the closest distance to that of 1.7 light years, and it's going WAY faster than Dimorphos. Voyager 2 is traveling at 15.341 km/s while Dimorphos is traveling at 0.177 m/s, so Dimorphos is traveling at 0.0011% the speed of Voyager 2. If they were going the same path, it would take Dimorphos 17,437,757,800 years (17.43 billion, which is 3.64 billion years longer than the current age of the universe) to reach Ross 248.
And as said, that's if it was going to leave our solar system in the first place, which it isn't.
Just woke up so I might have made some error in the math, please correct me if I have!
And I thought it was a long way down the road to the chemist
Who said the alien planet is outside our system?/r
17cm/s seems awful low. Is that its speed relative to Didymos?
Your math ain't inherently wrong though. Without strapping a torch drive on that thing it ain't going anywhere.
It is a meme
If I made a meme talking about jumping from the top of the empire state building and said you'd fall 100ft before hitting the ground, people would be justified in saying I have no idea how high actual empire state building is; and that is a hell of a lot closer to the actual answer than your estimate of 4000 years.