For Science Fans - New direct evidence of the expansion of the universe (Big Bang theory)

According to the article:- 

Gravitational waves, proposed by Albert Einstein’s General Theory of Relativity nearly 100 years ago but never before proven, are believed to have originated in the Big Bang explosion and then been amplified by the universe’s inflation.

Using a special telescope located at the South Pole, scientists not only detected gravitational waves in the universe’s fossil radiation; they also found that the telltale polarization signals are much stronger than expected.

In addition to providing the first direct evidence of the universe’s inflation, the measurements can be used to date the process and determine how much energy it took.

The links below has more information:

http://news.discovery.com/space/astronomy/big-bangs-smoking-gun-discovered-140317.htm