For nearly a century, humans have been searching for alien life. Scientists have come up with theories for why we have not yet succeeded. Here are six of the most popular explantions.
Dear Amazing Stories Readers: We've been bringing you daily content since 2012 as well as having published online three issues of Amazing Stories. Now we're asking for your help to bring back the print edition of the Amazing Stories magazine. Please visit our Kickstarter page and make your donation to restart the world's original Science Fiction magazine. Consider this, if just half of our 41,000+ members gave $10 to get the digital subscription we would be fully funded for nearly two years!