tag:blogger.com,1999:blog-1952911658996110475.post737598213013726019..comments2011-06-06T10:39:42.671+02:00Ronanhttp://www.blogger.com/profile/07090627872406836757noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-1952911658996110475.post-55301646153511915942010-02-11T15:56:07.601+01:002010-02-11T15:56:07.601+01:00

if the crab nebula expands 1500 km per second and was probably photograped for the first time at least a hundred years ago it has "grown" abot 4.7304*10^12 km, why don't they show the "young" versus the "mature" ?

Anonymousnoreply@blogger.com