Showing posts with label spazio. Show all posts
Showing posts with label spazio. Show all posts

Sunday, August 7, 2011

Universe_Nasa_Spazio_Google_Images



Universe_Nasa_Spazio_Google_Images  Universe Wallpaper
 
WALLPAPER

The recent mesaurements made by the scientists and engineers of the CNES (Centre National d’Études Spatiales) in collaboration with the JET PROPULSION LABORATORY  OF NASA,show that the universe is flat and it will continue expandind at an increasing speed.
The main cause of this expansion is believed to be the infamous dark energy,a hypothetical form of energy that permeates all of space and tends to increase the rate of expansion of the universe and  currently accounts for 74% of the total mass-energy of the universe.
Scientist were able to examine the effects of dark energy,by studing Abel 1689 the  most massive galaxy clusters.The gravity of its trillion stars, plus dark matter, acts like a 2-million-light-year-wide “lens” in space. The gravitational lens bends and magnifies the light of galaxies far behind it,and by observing such images,the astronomists are able do determine the speed and acceleration of our universe.
The implications of such results are as infinte as the expansion of the universe itself,in fact these mesaurements  break down the sustainers of the “shrink theory” aka the ones who thought that the universe would stop expandind at a certain point and shrink back to where everything started from,the big bang.
The future of o
ur universe is not very bright either,in a few billion years it will become a cold place and all of the stars like our son will finish their nuclear fuel and put out like candles on a birthday cake.