In January, two astronomers reported new evidence of a mas...

In January, two astronomers reported new evidence of a massive, shadowy Planet Nine tracing the outer limits of the solar system. It has a mass 10 times that of the Earth, and its orbit takes it 20 times farther from the sun, on average, than Neptune. The catch? Konstantin Batygin and Mike Brown of Caltech haven’t seen it — they inferred its existence from the behavior of smaller objects nearby that appear to be subject to its gravitational pull. Now the search is on. Brown predicts astronomers will find it by 2018.

PAUL, Raeburn, Disponível em: <https://www.newsweek.com/

2016/12/23/top-science-health-stories-2016-531805.html>.

Acesso em: 1 nov. 2018.

According to the text, the only statement that is not true about Planet Nine is that it