There have been an increasing number of discoveries of planets orbiting other stars that are in the habitable or ‘Goldilocks’ zone, not too close or too far from the star and thus having the kinds of temperature and size that might be able to support life. The possibility of intelligent life existing on other planets is tantalizing no doubt and opinion is split as to whether it exists or not. I for one think that it does. From our own existence, we know that the probability of intelligent life emerging is non-zero. Given the huge number of stars and planets out there in the universe, it seems possible, if not likely, that it could have emerged elsewhere too. But at the same time this same vastness of space makes it highly unlikely that we will ever find out about other life so it will likely remain a theoretical speculation.
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