Space
Two incredibly fast-orbiting stars seem to be the wrong temperature
A pair of distant stars orbit one another in a fast-paced system that would fit inside Saturn, and neither star seems to be the temperature that we’d expect
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A pair of distant stars orbit one another in a fast-paced system that would fit inside Saturn, and neither star seems to be the temperature that we’d expect
Claudius Ptolemy was a 2nd century Greek mathematician, astronomer and geographer famous for his controversial geocentric theory of the universe, which would form the basis of our understanding of the motions of stars and planets for over than a thousand years.