I have no idea what you mean with "dark years"; it doesn't sound like any term commonly used in astronomy.
Milky Way galaxy range from 100,000 light years up to 120,000 light years.
It takes a quarter of a billion years for the solar system to circle the milky way
You can see the milky way in very dark area of US
The Milky Way's diameter is about 100,000 light-years.
We are IN the Milky Way Galaxy, and therefore not able to line up with anything!!
100,000 ly across but only about 1000 ly thick.
Same as Earth. The distance from Earth to Mars is insignificant in comparison to the distance scales in the Milky Way. - About 20,000 light-years.
Astronomers have calculated that it takes the Sun 226 million years to completely orbit around the center of the Milky Way.
The solar system takes approximately 230 million years to orbit the center of the Milky Way.
If the milky way galaxy is 100,000 light years across and if the universe is 13 billion years old, you would have 130,000 milky way galaxies, end on end to the edge of the universe.
The Milky Way is approximately 100,000 light years across. The value may differ according to sources because the Milky Way does not have a defining boundary.
The Milky Way formed about 13.6 billion years ago from a huge cloud of gas and dust in space. As gravity pulled these materials together, they began to collapse and eventually formed the Milky Way galaxy that we see today. The Milky Way continues to evolve through the interactions of stars, gas, and dark matter within it.