PLUTO PAYS US BACK

Reeling from its demotion from planet status, the object formerly known as Pluto has played a prank on astronomers as revenge. Pluto has been hiding something from us. It has another moon we have never seen before.

Newly discovered, the moon is not yet formally named. Astronomers refer to it cleverly as P4. Suggestions for its name include "Oops" and "Gotcha".

One thing I like about science is no matter how certain scientists are, nothing is ever certain.