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How to catch a Dwarf Planet -- Triton MM#3


2m read
·Nov 2, 2024

The 14 moons of Neptune are a strange bunch. Most of them are small, potato-shaped pieces of ice and rock. Some are so far away from Neptune that they need 29 years to circle Neptune once. Almost all of them are asteroids trapped by Neptune's gravity.

99.5% of all the mass around Neptune is concentrated in Triton. It's the 7th biggest moon and more massive than all other known moons in the solar system that are smaller than itself combined. Its surface area is about as big as the mainland of Russia and Australia together.

Also, Triton is one of only four objects in the solar system that we know is geologically active. Triton orbits Neptune in the 'wrong' direction, against the rotation of Neptune, which is unique in our solar system for an object as big as Triton.

We can conclude from this that Triton hasn't always been a moon of Neptune, but probably was a dwarf planet that was forced into submission by Neptune when the solar system was younger and more chaotic. The most popular theory here is that Triton was once part of a double system.

When Neptune migrated to the outer edges of the solar system, its gravity interfered with the double system and catapulted the other object into space, while Triton was forced into orbit. This would have disrupted the orbits of other Neptune moons rather violently and would most likely have either pushed them away from Neptune or let them collide or crash into Neptune.

This would explain why Neptune's moons are so dominated by Triton. But this will end one day. Triton is being slowed down by Neptune, and eventually, it will either crash into it or be ground by Neptune's gravity into a huge ring system, similar to Saturn's.

So, don't buy real estate on Triton.

Fixed English Subtitles by Mads Hagemann Nielsen - 2015.
Subtitles by the Amara.org community.

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