Science
Planet X? Why not a tiny black hole instead? – Ars Technica
Unsuccessful at finding planet X? Substitute with undetectable black hole.
20 with 17 posters participating
Planet X has a long and storied history of non-existence. For about 130 years, astronomers have debated the existence of an additional planet or planets to explain discrepancies in the orbits of the known planets (mainly Neptune and Uranus). Later, the list of discrepancies was expanded to cover trans-Neptunian objects. But none of the Planet X candidates discovered, including Pluto, have the mass or location to explain observations.
Primordial black holes have…
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