Why Are Green Galaxies So Rare?, MessageToEagle.com

Is There Anything In The Universe Bigger Than A Galaxy?

Hubble Sees Weird Galactic Quartet

Do aliens exist? If so, where do they live and what kind of lives do they lead? - Quora

Strange Case Of A Dead Galaxy – What Happened To All The Stars?

A Postcard from Extragalactic Space?

Great Observatories Present Rainbow of a Galaxy

Observations identify rare new kind of galaxy

Do you think that there is a planet with advanced aliens somewhere out there in the universe? - Quora

Rare 'green pea' galaxy may be the most 'chemically primitive' galaxy ever discovered