Watch this / HW

http://www.upworthy.com/the-single-most-mind-altering-photograph-humanity-has-ever-taken

You may disagree with some of what Carl Sagan says, but you will probably at least find it poetic on some level.

And see this, mentioned in class today:

http://imgur.com/gallery/ylbWx7I

Cool:

http://www.iflscience.com/space/what-does-space-sound


Re:  Comet Ison

http://earthsky.org/space/comet-ison-has-an-outburst


And other photos worth a look:

http://nssdc.gsfc.nasa.gov/planetary/lunar/apollo_11_30th.html