Search | New Scientist

Skip to content

Pluto is not a planet – it's a billion comets squished together

Pluto is not a planet – it's a billion comets squished together

25 May 2018

Pluto’s heart-shaped ice plain is full of nitrogen, which hints that the tiny world is made from a billion comets and could have a buried ocean

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with New Scientist events and special offers.

Sign up