The nearest star in our galaxy- Centauri is 4.2 light years away 20 trillion miles
Distances within a galaxy are measured in kilo light yrs - 1,000 yrs
Distances between galaxies are measured in mega light years - 1 million yrs
The Andromeda galaxy is 2.5 mega light years away - 2.5 million years from us
The visible edge of the universe is measured in gigalight yrs. 1 billion
Quasars at the outer edge of the universe are 46.5 giga light yrs away ie 46.5 billion yrs away
Thats as far as we can see today!