Aliens living on other planets - it`s the inspiration for serious scientists as well as conspiracy theorists.
Today, we hope to separate the good evidence from the bad evidence and let you know what the real experts are doing to search for life.
We found one group in Chicago that has come up with a new approach.
WGN's Larry Potash has more on this story - watch it in the video player above
For more info, go to: ufodata.net