[caption id="attachment_178" align="alignnone" width="224"]<a href="http://schoolblogs.cuip.net/2013studentallstarstwo/wp-content/uploads/sites/18/2013/07/image-e1374093519504.jpg"><img class="size-medium wp-image-178" alt="How the Sloan Digital Sky Survey work." src="http://schoolblogs.cuip.net/2013studentallstarstwo/wp-content/uploads/sites/18/2013/07/image-e1374093519504-224x300.jpg" width="224" height="300" /></a> How the Sloan Digital Sky Survey work.[/caption]