A theory that said our observation of an expanding universe is an illusion, due to our galaxy’s unique situation in the cosmos, has been disproved by the Hubble space telescope. “We now can say with even greater accuracy than ever before that the expansion rate of the universe is 73.8 kilometers per second per megaparsec. A parsec is equivalent to about 3.26 light-years, so this means that for ever 3.26 million light-years a galaxy is from Earth, it appears to be moving away from us 73.8 kilometers per second faster than it would if it was right next to us.”
"I grew up in New Jersey in the 1970s and that experience gave me everything I needed to become a skeptic."
The paper does not prove the existence of dark matter, but it mostly eliminates a rival theory called Modified Newtonian Dynamics.
How to figure out the right amount of time for any project.
If you dnate to the relief effort in Japan, you can enter a chance to win this new book about the past and present of Japanese art.