• NASA Study Concludes When Civilization Will End, And It's Not Looking Good for Us https://www.mic.com/articles/85541/nasa-study-concludes-when-civilization-will-end-and-it-s-not-looking-good-for-us 4 comments 1/6/2019 politics
• NASA Study Concludes When Civilization Will End, And It's Not Looking Good for Us http://www.filmsforaction.org/articles/nasa-study-concludes-when-civilization-will-end-and-its-not-looking-good-for-us/#.u2nirn2cvxn.facebook0 14 comments 20/5/2014 worldnews
• NASA Study Concludes When Civilization Will End, And It's Not Looking Good for Us. http://www.policymic.com/articles/85541/nasa-study-concludes-when-civilization-will-end-and-it-s-not-looking-good-for-us 5 comments 19/3/2014 worldnews
• How relevant is this? "NASA Study Concludes When Civilization Will End, And It's Not Looking Good for Us" http://m.mic.com/articles/85541/nasa-study-concludes-when-civilization-will-end-and-it-s-not-looking-good-for-us 5 comments 8/1/2015 science