The Many, Many Times Astronomers Mistook Mundane Phenomena for Aliens

The science world is all in a tizzy this week about the supposed discovery of an alien megastructure. It’s an intriguing theory, no doubt, but one deserving hefty amounts of skepticism. As we’ve learned before, inexplicable observations are all too often confused for aliens. Here are some classic examples. »10/15/15 6:00pm10/15/15 6:00pm

New Scale Pinpoints Most Life-Friendly Alien Planets 

Researchers at the University of Washington’s Virtual Planetary Laboratory have devised a new habitability index for judging how suitable alien planets might be for life. The point of the exercise is to help scientists prioritize future targets for close-ups from NASA’s yet-to-be-launched James Webb Space Telescope »10/06/15 5:00pm10/06/15 5:00pm

Is It Time to Accept That We're Alone in the Universe?

We have yet to discover any signs of aliens, a troubling observation that has led to much speculation. One possible solution to the Great Silence is that nobody's out there. It's a conclusion that sounds impossible to believe, but there may be something to it. Here's why we may be alone in the universe. »11/05/14 5:17pm11/05/14 5:17pm