People with reasonably good eyesight can see several planets in the night sky. Jupiter is often the brightest object in the sky when the Moon is not above the horizon. Saturn, Mars, and Venus are also easily visible at least part of every year. Mercury is a bit more difficult. A few people with good eyes can spot Uranus, if they know where to look.
Yes
Earth is known as the blue planet because of its extensive oceans that give it a predominantly blue appearance when viewed from space. The reflection of sunlight off the oceans contributes to its blueness.
Look up. You'll see it.
This planet is called earth... to see the earth from out of space view earth.google.com
well you see, when a planet, hits another planet, it blows up. you stupid prick
The moon orbits the Earth, so it is always visible from some point on Earth.
Probably the Earth since we're standing on it and see it everyday.
No, Jupiter can also be seen by the human eye on earth.
See the links below for examples.
The intellect.
When the sun and the moon are on opposite sides of our planet.
the Earth is, see : http://www.adlerplanetarium.org/cyberspace/planets/density.html