The universe is expanding faster than previous scientific models predicted, study says

In the visible light band, distant stars and galaxies appear redder and redder as they move faster. By analyzing this redshift, scientists can calculate the speed at which they are moving away, and thus the expansion rate of the universe. The universe began with the Big Bang 13.7 billion years ago, and space has been expanding ever since. Observations in 1998 showed that the expansion of the universe was accelerating. The data published this time is double what was first measured 24 years ago and confirms the acceleration. Previously, different theories came up with different rates of expansion of the universe due to differences in how they were measured. Some scientists expressed hope that this research can help to solve this mystery.

In addition, scientists involved in the study calculated that the universe is made up of about 2/3 dark energy and 1/3 matter, mostly in the form of dark matter.