Phoebe . Saturn IX . Phoebe [FEE-bee] is the last of the known satellites of Saturn, at a distance of 12.952 million kilometers (8 million miles). Phoebe orbits Saturn in a retrograde direction (opposite to the direction of the other satellites' orbits) in a plane much closer to the ecliptic than to Saturn's equatorial plane. ... Scientists believe that Phoebe may be a captured asteroid with a composition unmodified since the time it was formed in the outer Solar System . ...
T he solar system consists of the Sun ; the nine planets, sixty four (64) satellites of the planets, a large number of small bodies (the comets and asteroids), and the interplanetary medium. The inner solar system contains the Sun, Mercury , Venus , Earth and Mars : . T he planets of the outer solar system are Jupiter , Saturn , Uranus , Neptune and Pluto : . ... small planets: Mercury, Venus, Earth, Mars and Pluto. ... inferior planets: Mercury and Venus. closer to the Sun than Earth. ...
Le choix fait pour qualifier l' lectricit de "positive" et "n gative" a t fait aux alentours de 1750 par Benjamin Franklin, premier scientifique Americain et homme talentieux (le timbre gauche comm more son r le de premier receveur des postes am ricain-- et receveur colonial avant cela). ... Il fit de nombreuses d couvertes et une exp rience imprudente, o il fit voler un cerf volant dans un nuage orageux, lui fit d couvrir que les clairs taient une d charge d' lectricit . ...