2006-12-07 08:17:33 · 11 answers · asked by jeff w 1 in Science & Mathematics ➔ Astronomy & Space
The main reason is that the expansion rate is determined by how far apart things are. Galaxies are small enough that the motions within galaxies overwhelms the expansion.
2006-12-07 08:36:32 · answer #1 · answered by mathematician 7 · 1⤊ 0⤋
Basic answer is Gravity. Long answer, Professor Stephen Hawkings [The Universe in a Nutshell]. There are some things in space still not understood. Our neighborhood e.g. the Milky Way is supposedly held together by gravity. The universe as a whole is expanding due to dark matter (theory). Only the archetect of the universe knows for sure. Do a dark matter search on the internet for more info.
2006-12-07 08:23:46 · answer #2 · answered by guitar200174055 3 · 3⤊ 1⤋
Well, Space does expand. Space is never not in motion.
It for sure is not empty. Therefore gravity affects the particles of space.
Our Solar system is expanding. As is the Milky way.
I think you need to re word this question though.
2006-12-07 08:22:52 · answer #3 · answered by devilduck74 3 · 1⤊ 2⤋
Wherever "local" forces of gravity dominate those mysterious forces causing distant galaxies to recede at ever increasing speeds, there you will find no expansion. In fact, the local group of galaxies, including the Milky Way and Andromeda, will remain a cluster, just as the Shapley Supercluster of galaxies has enough gravitational force to overcome any tendencies to recede and will stay together.
2016-05-23 04:25:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋
"Space" contrary to a previous post does not expand. Space is a constant as of right now. Space is the lack of matter, or the area between two or more pieces of matter.
Space stays the same as does matter. Matter cannot be created or destroyed. It can only change its form into smaller or larger pieces.
Gravity holds together our system and others at a more constant rate than free roaming planetoids and other bodies. Similair to power or safety in numbers. Once they are together, they tend to hold together tighter.
2006-12-07 08:30:47 · answer #5 · answered by billydeer_2000 4 · 0⤊ 1⤋
In systems like solar systems and galaxies the combined gravitational force keeps it from expanding like the rest of the universe which is much more widely distributed so that IT's gravitational force is not enough to overcome the expansion.
2006-12-07 08:27:02 · answer #6 · answered by Anonymous · 1⤊ 1⤋
That would be the unexplained force of gravity.
2006-12-07 09:47:35 · answer #7 · answered by ossifer8301 2 · 0⤊ 0⤋
d
2006-12-07 08:31:23 · answer #8 · answered by Miss Kitty 2 · 0⤊ 1⤋
Space is nothing how do u measure it???
2006-12-07 08:21:41 · answer #9 · answered by JOHNNIE B 7 · 0⤊ 3⤋
the answer to your question is simple........its......42!!!
2006-12-07 09:21:53 · answer #10 · answered by CaptCanuck23 2 · 0⤊ 0⤋