50 Years Ago Jocelyn Bell Discovered Pulsars
Anyone know about taking astronomical photographs?  There's one such photo at the top of this article.<p>1.  The night's sky never actually looks like that.  Is it simply that the exposure was long so that the brightness of each object is enhanced?  How long would the exposure have to be?<p>2.  What is that pinkish nebula-like band/arc that the photo is centered around?