Why NASA thinks a hidden ninth planet might be possible

You’ve probably heard both astronomers and members of the public arguing about how many planets there are in our solar system. Ever since Pl...

You’ve probably heard both astronomers and members of the public arguing about how many planets there are in our solar system. Ever since Pluto was demoted from its planet status in 2006 and downgraded to a “dwarf planet,” people have been arguing that it should be reinstated. However, there’s another debate about how many planets are in the solar system … Continue reading

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