This is the end of his talk called "Cosmic Quandaries". When it comes to science and outer space, Neil deGrasse Tyson is probably the most interesting person on the planet. <br /><br />Watch more videos here <a href="http://www.videobash.com/">http://www.videobash.com</a> <br />Facebook page <a href="http://www.facebook.com/videobashfan">http://www.facebook.com/videobashfan</a>
