December 21, 2013
Star Arms

Using the Ultra Deep Field survey and (what seems like) a few basic sort rules, astronomers have worked out how and when galaxies developed spiral arms. In a nutshell: it took about half the current age of the universe for that to happen.

Posted by scott at December 21, 2013 08:32 AM

eMail this entry!
Post a comment

Email Address:



Remember info?