Who named and discovered planets Saturn and Jupiter?

Answer 1

The first 6 planets (Earth included) were known from antiquity. Mercury, Venus, Mars, Jupiter, and Saturn are all Roman names. Originally they were named after the Greek Gods. Then the Romans renamed them with Roman Gods names.
The first planet to be discovered by telescope was Uranus by Sir William Herschel in 1781. Next was Neptune. It was predicted because Neptunes orbit was noticed to be "bumpy" and Newton's Law of Universal Gravitation predicted that another planet beyond the orbit of Uranus would cause such a perturbation. It was indeed found years later in 1846.

Answer 2

Mercury, Venus, Mars, Jupiter, and Saturn are easily seen without a telescope and were known in ancient times. No one person discovered them. In our modern electrically-lit culture, it is hard sometimes to imagine what it would be like to live a lifestyle in which the night sky is visible night after night in all its brilliance, without being washed out by streetlights. In such an environment, the motions of the planets against the stars would be obvious to every shepherd who sat with his sheep at night and looked at the heavens. (the word "planet" is Greek for "wanderer.")

The names Saturn and Jupiter are Roman, named after the titan Saturn and the god Jupiter. But the Romans were certainly not the first to notice them, or to name them.

Answer 3

Saturn and Jupiter were not "discovered". They are both visible with the naked eye and thus humans have been looking at them for as long as we've lived on this Earth.

However, they were named after Roman gods. Jupiter was the king of Roman gods and Saturn was the Roman god of agriculture.

Does this help?

Answer 4

Yes there could be some form of life on or in any or all of those planets. We don't know enough about life in general in the universe to unequivocally say that a particular planet cannot support any kind of life.

Answer 5

The ancient Geeks did most of the naming. Those planets were never "discovered". So far as we can tell they were always visible in the sky, same as today.

Answer 6

Here's all about Saturn:
http://en.wikipedia.org/wiki/Saturn_(planet)
and all about Jupiter
http://en.wikipedia.org/wiki/Jupiter_(planet)

These planets have been known since ancient times.