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The scientific truth about Planet Nine, so far (Synopsis)

9 May 2017, 14:26 UTC
The scientific truth about Planet Nine, so far (Synopsis)
(200 words excerpt, click title or image to see full post)

“Finding out that something you have just discovered is considered all but impossible is one of the joys of science.” -Mike Brown
In January of last year, astronomers Konstantin Batygin and Mike Brown shocked the world by proposing that there was a world larger than Earth located some five-to-ten times as distant as Neptune. That this world — known as Planet Nine — was causing the ultra-distant Kuiper belt objects we’d discovered so far to all have predicable, peculiar properties. And the observations matched up really well.
The 3D orbits of the Kuiper belt objects influenced by Planet Nine. As Mike Brown said, ‘The distant objects with orbits perpendicular to the solar system were predicted by the Planet Nine hypothesis. And then found 5 minutes later.’ Image credit: Mike Brown / http://www.findplanetnine.com/.
But in science, post-dictions aren’t enough. You need to make new predictions for objects you can then go out and measure, and see how they line up. In the case of Planet Nine, there are four pieces of indirect evidence that can be measured, and one piece of direct evidence that will settle the issue once and for all: actually locating Planet Nine.
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