Which planets can be seen with the naked eye?
Being something of astronomy buffs here at Yahoo!, we knew that several of the planets in our solar system had been identified long before the invention of telescopes. But which ones were they? In the Yahoo! Solar System category, we found a site explaining that the “seven planets of the ancients” are Mercury, Venus, Mars, Jupiter, Saturn, the moon, and the sun. (The moon and the sun were called planets in ancient times because they moved through the skies rather like the planets.) According to the site, Uranus is barely visible to the naked eye, but it wasn’t known to be a planet until 1781. Continuing to boldly go where no one has gone before, we searched Yahoo! for “planets naked eye” and turned up lots of tips for naked-ey
