The faint image of a god was observed by your telescope. Located in the Spider Nebula, it looks like a snow angel. Compute the temperature below which liquid water can exist. Give an estimate of the Earth’s average temperature. Hint: Use the definition of emissivity. Drop some steak on it and see if it eats. That will be the only time humans and a god meet. *This observation is a remix of an image by NASA/JPL-Caltech.