Because they are sooooo far away.
See related question for distances to our nearestgalaxies.
At least 3 or 4 galaxies can be seen with the naked eye. Other galaxies can be seen if you watch through a telescope. Basically, in any direction you look, there are galaxies.
No. No. You need a telescope to see Neptune.Nope... Neptune cannot be seen from the Earth without a telescope.
No. No. You need a telescope to see Neptune.Nope... Neptune cannot be seen from the Earth without a telescope.
Mercury can be seen with or without a telescope, depending on the conditions.
The two galaxies that can be seen from Earth without a telescope are the Milky Way, our own galaxy, and the Andromeda Galaxy, which is the closest spiral galaxy to us at about 2.5 million light-years away.
Yes, Mars can be seen at night without a telescope. It's a "naked eye object".
No. You need a telescope to see Titan.
Neptune but only on a very good night i think
Saturn is the last planet that can be seen without using a telescope or binoculars and the planet was known in the ancient world before telescopes were invented. The rings, however, can only be seen using a telescope.
No. All the stars you see at night are in our galaxy. Stars in other galaxies are much too far away to be seen without a powerful telescope.
Earth can easily be seen without a telescope, simply look close to your feet, you are standing on it. Earth is the planet that we live on.
Yes. It can also be seen without one.