How Many Solar System



"Cassini's seven-plus years... have shown us how beautifully dynamic and unexpected the Saturn system is," commented project scientist Dr. Linda Spilker of NASA's JPL to Time Magazine's online edition on March 23, 2012. Galilean Moons Of Jupiter. One dark, clear January night in 1610, Galileo Galilei climbed to the roof of his house in Padua. He looked up at the sky that was speckled with the flickering fires of a multitude of starry objects, and then aimed his small, primitive "spyglass"--which was really one of the first telescopes--up at that star-blasted sky above his home. Over the course of several such starlit, clear winter nights, Galileo discovered the four large Galilean moons that circle around the largest planet in our Sun's family, the enormous, gaseous world, Jupiter. This intriguing quartet of moons--Io, Europa, Ganymede, and Callisto--were named for four of the numerous mythic lovers of the King of the Roman gods. On July 20, 1969, astronaut Neil Armstrong radioed back from the surface of the Moon, "... the Eagle has landed". Most of us believe that the landing occurred as broadcast. Not all, however. More than 30 years after the fact, Fox TV aired "Conspiracy Theory: Did We Really Go to the Moon?". In doing so, the Fox entertainers unleashed a lively cabal of kooks and NASA-bashers on a scientifically naive audience without benefit of editorial balance. Polls suggest that perhaps 6% of Americans believe in the authenticity of these claims.