Episodes related to topic: doppler spectroscopy
How do they detect planets orbiting far-away stars? Is that even a real thing? Yes it is true, and there are two main methods for finding them: doppler shift and periodic changes in light intensity. To date, thousands of extrasolar planets have been detected. But what does this mean for the possibility of life in outer space? Actually, very little, for most stars are inhospitable to life in general. Joe and Rob wrap up with a discussion on theology and how a Christian can make sense of the new discoveries.