Jan 23, 2020
10:36:58pm
10:36:58pm
ELI5 please. If there is a Planet 9 like many astronomers predict,
and supposedly has a mass of Neptune(ish), why in the world haven't we found it yet?
We can reasonably predict the make up of atmospheres of planets in other galaxies, why can't we confirm a large planet in our own solar system?
We can reasonably predict the make up of atmospheres of planets in other galaxies, why can't we confirm a large planet in our own solar system?
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