dehammer wrote:
"astrophysis know that we are moving"
No they don't. Where did you get this? We use phrases such as "moving away from each other" to describe relative motion. To explain things to the lay public. But any technical publication will refer to the expansion of space itself.
http://www.newton.dep.anl.gov/askasci/phy00/phy00812.htm http://en.wikipedia.org/wiki/Metric_expansion_of_space Quote:
"Hubble's law applies to all galaxies or clusters sufficiently distant from one another that gravitational forces are negligible. According to the law, these galaxies are flying away from each other at tremendous speeds as the fabric of space they occupy stretches, such that the greater the distance between any two galaxies, the greater their relative speed of separation. In other words, the expansion of the universe is roughly uniform. This empirical finding strongly supports the theory that the universe began with an explosive big bang (see cosmology cosmology, area of science that aims at a comprehensive theory of the structure and evolution of the entire physical universe."
Source:
http://columbia.thefreedictionary.com/Expansion+of+space
