Das Pluto-Problem

Warum ist Pluto kein Planet mehr?

Quellen & Links:

Definition of a planet in the Solar System (IAU.org)

What is a planet? (NASA.gov)

Pluto-Daten (ESA.int)

Astronomers Expel Pluto From The Planetary Club (TheGuardian.com)

SolarStory.net

First Image of A Black Hole (ESO.org)

NASA Makes History With Closest Flyby of Pluto (ScienceAlert.com)

Gravitational Waves Have Been Detected, Einstein Was Right (ScienceAlert.com)