Towards the end of
October, Comet 17P/Holmes shocked sky watchers around the world
with a sudden million-fold increase in brightness. It literally
exploded into view, rapidly becoming a naked eye "star"
in the constellation Perseus. Since then the comet has expanded
dramatically. It grows visibly from night to night and no
one knows how large it will become.
This image was taken on the evening of 4 November
2007
