2007-08-10 14:10:54 · 5 answers · asked by GBMC 3 in Science & Mathematics ➔ Astronomy & Space
Well, we have lots of Star Charts which show major stars and constellations all around the Earth. However, these charts and lists of space objects do not begin to claim and degree of completeness. The Universe is immense, and we can only see (in general) stars. Planets do not have illumination of their own, and dead stars do not have any illumination. so there are zillions of things out in space that we cannot see.
Each star that you see could have from one to ten (or more) planets orbiting around it along with all of their associated moons. And, almost all of the stars that you can see with the unaided eye on a clear night are within the Milky Way Galaxy (more than 200 Billion). Beyond our Milky Way Galaxy there are thousands and thousands of other Galaxies and each of them have billions more stars inside of them. Yup, each of them might have a planet system with various moons also.
So, we can see (and map) only a very, very small part of the universe.
2007-08-10 14:39:21 · answer #1 · answered by zahbudar 6 · 2⤊ 0⤋
The good news: We have a good mapping of all objects within 300 million light years. (About a 600-million light year sphere.)
The bad news: The universe is *at least* 17 *billion* light years across. And probably larger.
To know the answer to your question, we'd have to know how big the universe truly is... and, at present - we don't have a good idea.
2007-08-10 21:22:59 · answer #2 · answered by quantumclaustrophobe 7 · 2⤊ 0⤋
a tiny little dot of the ever huge space
2007-08-10 21:18:04 · answer #3 · answered by SwiftKill 4 · 1⤊ 0⤋
A very small section.
2007-08-10 21:17:47 · answer #4 · answered by sakira_starwolf 6 · 1⤊ 0⤋
bugger all- in the even expanding universe less then a percent, much less
2007-08-10 21:18:28 · answer #5 · answered by Jesk 6 · 1⤊ 0⤋