Sentences with phrase «universe under the influence of gravity»
Not exact matches
The microwave background marks the limit of the observable universe, nearly 14 billion light - years away, and Rudnick believes that the void, which is 6 billion to 10 billion light - years away, imprinted its form on the microwave background by the simple virtue of being empty: Under the influence of dark energy and gravity, space containing clusters of galaxies compresses microwaves to a shorter, warmer part of the spectrum, while space that is empty on this scale stretches and cools microwaves.
http://discovermagazine.com/
Estimating both the distance and recession speed of ancient Type - Ia supernovae allow astronomers to calculate the expansion of the universe, back during an era when matter in the universe was still relatively dense and expansion was still slowing under the influence of gravity and before its later hypothesized, subsequent acceleration from a mysterious repulsive force (more from NASA's Observatorium and NERSC's press release).