Pluto | Astronomy.com

Today in the History of Astronomy

Aug. 24, 2006: Pluto is demoted

Solar System, Today in the History of Astronomy

June 28, 2011: Kerberos is discovered

Pluto may have ‘kissed’ Charon to capture it

Pluto and Charon

JWST reveals surprising surface chemistry is occurring on Pluto’s moon Charon

Composite image of Pluto on several days in 2023

Can you view Pluto in a backyard telescope?

A color image of Pluto shows its heart-shaped section.

Science, Solar System

Is Pluto a planet? It depends.

Pluto, as imaged by New Horizons

A collision with something the size of Arizona could have formed half of Pluto’s ‘heart’

Owen Gingerich, historian of astronomy, passes away

Ask Astro: Will Pluto and Neptune ever collide?

Observing, Planets

Catch Pluto at its best during opposition this week

Observing, Planets

How to view Pluto at opposition this week

Exoplanets, Planets, Solar System

Infinity & Beyond — Episode 16: Pluto’s icy heart