From the brain-exploding Martians of Mars Attacks! to the wonderful diversity of Men In Black’s extraterrestrial entourage, the possibility of alien life is a concept that has captured the imagination of our entire planet. Most of us only get to explore it at the movies – but for some scientists, the search for alien earths is at the core of their career.  One such scientist is Professor Lisa Kaltenegger, an astronomer who quite literally wrote the book on Alien Earths. That was why we were so excited to catch up with her at CURIOUS Live to find out what the search for life elsewhere in the universe actually entails, and how we even know what to be on the lookout for.