Who was a famous German astronomer?

How many states have mandatory physical education? Is it normal for your willy to hurt a little after sex when you pee? How many miles between Wayne state university and university of Michigan? This site was made for educational purposes not for some BS behaviors some of you here are showing and spreading. Please grow up and be serious, education is not a joke. Stop those idiosyncrasies and respect this EDUCATIONAL site? How do you say interviewer in Italian? Is it considered plagiarism if I include the keyword in my question? How can someone tell if you lost your virginity? Which one was the predecessor of UNO? Is eastern high school a good school? Do they play sports in Mexico in high school? How do you say what will we do in spanish? What college major has the highest drop out rate? How does plot affect setting? What is average class size in charter school? How do you say my mamas name is gina in spanish? Who does marron mean in spanish? Ano ang tinatawag na ponolohikal? What is the definition of the word oxygenated? How do you say Alexander Michael nicholas Ryan in spanish? How many psi gas charge in a refrigeration compressor?