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What Exactly Is a Galaxy?
sciencehabit writes "Surprising as it may sound, astronomers don't have an answer to this basic question. There's no agreement on when a collection of stars stops being a cluster and starts being something more. Now, in an echo of the recent wrangling over Pluto's status as a planet, a pair of astrophysicists from Australia and Germany want to start a debate on the issue — and they have even set up a Web site for people to cast their votes."
While we're on the subject of galaxies, reader mvar pointed out that astronomers using data from Hubble have spotted what could be a new record holder for the most distant known galaxy, located roughly 13.2 billion light years from Earth.
It's a phone right? Most likely to be running Android
I know a galaxy when I see one.
If Slashdot were chemistry it would look like this:Cadaverine
...or we might wind up living in the Milky Way Cluster
A galaxy is a massive, gravitationally bound system consisting of at least one Stephen Colbert.
How can I believe you when you tell me what I don't want to hear?
Typically they are something far, far away and a long time ago. At least from our perspective that is.
Better known as 318230.
And there was me thinking it was a chocolate bar. :P ;)
Video Game cheats, hints a