D라이브러리

and the ancient Babylonians found that five bright stars(the planets we now call Mercury, Venus, Mars, Jupiter and Saturn) did likewise. Since the sun and moon exerted an important influence on Earth, shouldn't these other stars do so, too? the ancients therefore invented planetary influences, based on various fanciful and mythological beliefs, and this was astrology.It was felt that the ...

are particularly large - more than 3,000 miles across. Still, they are too small and too warm to have atmospheres. Saturn has one large satellite, Titan, which is also more than 3,000 miles across and gets only 1/90 the heart from the sun that the moon does. It is large enough and cold enough to have an atmosphere. Back in 1948, G. P. Kuiper detected this atmosphere and found it to contain ...