Universe’s Rate of Expansion nearly constant, say Scientists

Universe’s Rate of Expansion nearly constant, say Scientists

The universe was believed by researchers to be expanding at a faster rate. Cosmologists determined in 1990s that the rate at which the universe was expanding was actually accelerating. And some kind of unseen force, dubbed a dark energy, was believed to be behind it. They derived the conclusion after observing a special type of explosion.

However, another team of researchers has now debunked the theory and claimed that the universe is not expanding at as much rate as previously thought. They observed a variation in brightness of type Ia supernovae. The new claim could mean, if proves to be true, that this unseen force many not be quite as much as once thought.

"The faraway supernovae should be like the ones nearby because they look like them, but because they're fainter than expected, it led people to conclude they're farther away than expected", Peter A. Milne of the University of Arizona said. This was the reason researchers believed that the universe is expanding at a rate faster than in the past.

Through the new study, the researchers determined that it's not the case and the universe is not expanding as fast as previously thought. On the contrary, its pace of expansion is much slower.