How YOU can help find aliens!

Space, UFO, aliens have always fascinated us. Are we alone? Are aliens real? These are good questions that have captured our imagination and which science tries to answer for many years. About thirty years ago, the first alien world, or exoplanet, was found and our efforts were directed towards finding more. By now, we've found a few thousand exoplanets... But how can we find out if there's life on their surfaces? Well, our own planet and global warming can give us some clues on how we can accomplish this mission. Join me as I explain the signs of life we look for, like the "Goldilocks Zone" and exotic chemistry that may seem surprisingly familiar. Marvel at the space telescopes we use to find and examine them, and discover how you can help using a small telescope and your home computer.