published on: 2013-01-29 20:18:48
gamefreaksnz: Retrogaming (a set on Flickr)
thesciencellama: Awesome science infographics 1) Our Eyes in
abluegirl: Stunning Supernova Remnants Every 50 years or so,
evil-head:
fearlesspilot21.tumblr.com/post/41804137208/
weaponology: Sexy Sniper