Scientists hold their breath as a mysterious signal blips across their radar. The signal is coming from outer space. Is this an alien life form sending a signal to communicate with Earth? Don't panic, instead, check out today's epic new video where we trace strange radio signals being sent to us from the not too far reaches out space! | The Infographics Show

Scientists speculate that a mysterious flash of light may be a signal from aliens! | Ancient Aliens: Out of This World Moments