“The 51st entry in Charles Messier’s famous catalog is perhaps the original spiral nebula - a large galaxy with a well defined spiral structure also cataloged as NGC 5194.” (via APOD: 2009 December 26 - M51 Hubble Remix)
“The 51st entry in Charles Messier’s famous catalog is perhaps the original spiral nebula - a large galaxy with a well defined spiral structure also cataloged as NGC 5194.” (via APOD: 2009 December 26 - M51 Hubble Remix)
