FTP, identify this German astronomer whose paradox asks why the sky is dark at night.
This scientist helped Bessel publish a paper on the orbit of Halley's comet. In 1832, he predicted that the Earth would  pass through the tail of Biela's comet, although there were no visible effect. A physician in Bremen, he set up an observatory in the upper portion of his house, and discovered the asteroids Pallas and Vesta. He formed a theory on why the tail of a comet always points away from the sun, but he is better known for an 1826 proposal. FTP, identify this German astronomer whose paradox asks why the sky is dark at night.
This scientist helped Bessel publish a paper on the orbit of Halley's comet.
Heinrich Wilhelm Matthaus Olbers (not Olber)