Jupiter reaches its best apparition in a decade for northern observers and offers a wealth of detail. Joining in late evening ...

After Cassini found Iapetus, he also found the moons Rhea, Tethys and Dione. When Cassini first saw Iapetus, the moon looked like a tiny speck on the west side of Saturn. He calculated its orbit ...

Homer claims Oceanus and Tethys, pictured in the lower half of this mosaic, were responsible for the birth of the gods, but Hesiod's version of the origins is generally accepted (see Gypsy Girl).