Our universe is constantly expanding at a very high rate.
The rate is approximately 46.2 kilometers per megaparsec.
A megaparsec is 3 light years. In the 1920's, an astronomer
by the name of Edwin P. Hubble found out that our universe
is not static, but is expanding at a certain rate. Later in the 1990's,
Hubble Telescope discovered that the rate at which our universe
is expanding by is speeding up! Scientists still aren't exactly sure on
why or how our universe is expanding, but efforts from groups like
NASA continue to research and find out why.