Do you believe in the existence of "dark matter" or "dark energy" (Please don't flame me, I know how interconnected they are)? Are they just a convenient cop out to explain a REALL... moreDo you believe in the existence of "dark matter" or "dark energy" (Please don't flame me, I know how interconnected they are)? Are they just a convenient cop out to explain a REALLY difficult problem?
Hello,According to a recent estimate, there would be about 2 trillion galaxies in the observable Universe. How many would there be in the whole Universe?Thank you.
