Eris is bigger and heavier than our Solar System’s ‘ninth planet’.

Whether you call it a planet or not, Pluto has officially been overtaken by a more massive planetary object — Eris (previously nicknamed Xena).

Read the story herehttps://www.nature.com/news/2007/070611/full/070611-10.html

Eris is bigger and heavier than our Solar System’s ‘ninth planet’.

Whether you call it a planet or not, Pluto has officially been overtaken by a more massive planetary object — Eris (previously nicknamed Xena).

Read the story herehttps://www.nature.com/news/2007/070611/full/070611-10.html