In this episode of Life's Little Mysteries, we'll take a closer look a scientific mystery that's a favorite topic here at Live Science: aliens.
How do scientists search for extraterrestrial life? If we were to discover aliens, what are the protocols for making contact? And if we were to encounter aliens ... would they look like us? Listen to Life's Little Mysteries 16: Mysterious Aliens, to find out!
We'll also hear about the possibility of intelligent extraterrestrials "bugging" a space rock to eavesdrop on Earthlings, and how the Search for Intelligent Extraterrestrials Institute, or SETI, is investigating radio signals that could point toward advanced alien civilizations.
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Originally published on Live Science.