Things You Probably Didn't Know
Things You Probably Didn't Know
Out of context: Reply #68
- Started
- Last post
- 74 Responses
- voiceof0
-The known universe is 154 billion light years across.
-1 light year is about miles 6 trillion miles
-The milky way (our galaxy) would take 100,000 years at light speed to go from end to end .
-If our solar system were a quarter then our galaxy would be the diameter of the USA
-if our solar system was a quarter the next closet star would be two soccer fields away
-If our galaxy were a CD the next closest galaxy would be two feet away the farthest star we can see would 8 miles away.
- the light you see from a star is likely millions of years old