Was Stonehenge built to mark solar phenomena? If so what did it mark? Thanks for your time.
On midsummers day the Sun rises directly over a particular stone in Stonehenge (go here for a picture).
This was discovered in the 18th century so it has long been assumed that Stonehenge was a temple for the worship of the Sun. It has been argued by several people that this alignment cannot have been accidental and that it would have been possible to use Stonehenge as an Astronomical calculator (i.e. to predict the dates of eclipses). Other people disagree with this conclusion.
Karen was a graduate student at Cornell from 2000-2005. She went on to work as a researcher in galaxy redshift surveys at Harvard University, and is now on the Faculty at the University of Portsmouth back in her home country of the UK. Her research lately has focused on using the morphology of galaxies to give clues to their formation and evolution. She is the Project Scientist for the Galaxy Zoo project.