Did Vikings navigate by polarized light? Nature News,Published online: 28 January 2011; | doi:10.1038/news.2011.58 http://dx.doi.org/10.1038/news.2011.58 Forwarded from the nature.com iPhone app: http://www.nature.com/mobileapps Sent from my iPad

40 years ago today, the first humans walked on the moon, having survived a perilous journey there and worrying about whether they would get home. if you were born after that day, the moon landing probably seems like an ordinary event to you, video with poor special effects...