Evidence Is Mounting for Planet Nine
Matt Williams, Universe Today
In January of 2016, astronomers Mike Brown and Konstantin Batygin published the first evidence that there might be another planet in our Solar System. Known as Planet 9, this hypothetical body was estimated to be about 10 times as massive as Earth and to orbit that our Sun at an average distance of 700 AU. Since that time, multiple studies have been produced that either support or cast doubt on the existence of Planet 9.
via RealClearScience http://ift.tt/VUc7dc
July 17, 2017 at 01:05PM