50 years ago, scientists had hints of a planet beyond Pluto
There have been suggestions that our solar system might have a tenth planet
In the April Publications of the Astronomical Society of the Pacific, a mathematician
presents what he says is “some very interesting evidence of a planet beyond Pluto
The 1972 evidence never yielded a planet, but astronomers haven’t stopped looking
though it became a search for Planet 9 with Pluto’s 2006 switch to dwarf status.
scientists hypothesized that the tug of a large planet 500 to 600 times as far from the sun as Earth
Researchers using the Atacama Cosmology Telescope in Chile to scan nearly 90 percent