Yes. It was first seen in 1846. It is not very bright and you would need a telescope and to know where to look in order to see it.
No one has "been on" Neptune.
No there hasn't.
You can see Neptune with a telescope.
No. The only object that humans have been to other than Earth is the moon. So far Neptune has been explored by one unmanned space probe.
stars :)
You can see Neptune with a small telescope or with a good pair of binoculars any time except whenever the Earth and Neptune are on opposite sides of the Sun. So for nine months out of the year, you will be able to see Neptune - as long as you know where to look. It has nothing to do with leap years.
No, Neptune is a mythical god of the sea and he cannot be seen. A person on the planet Neptune coud not be seen with a telescope unless it was near the planet Neptune.
All we can see of Neptune is the top of a thick cloud layer.
you tell me
voyager 2 was the first spacecraft to see Neptune's rings
No. No. You need a telescope to see Neptune.Nope... Neptune cannot be seen from the Earth without a telescope.
The planet Neptune is Blue. See Related Links for an image of this planet. Neptune is light blue but looks dark blue due to the affects of Methane gas.