A study of more than 200,000 galaxies, encompassing wavelengths of light from the far ultraviolet to infrared, shows that the universe is producing half as >much energy as it did 2 billion years ago and continues to fade. “Newer galaxies are simply putting out less energy than galaxies did in the past,” >astronomer Mehmet Alpaslan, with NASA’s Ames Research Center in Mountain View, Calif., told Discovery News. SNIP

http://news.discovery.com/space/galaxies/universe-is-dying-galactic-survey-shows-150810.htm