Cosmologists have detected a long sought component in the Cosmic Microwave Background (CMB), which will help us to further our understanding in revealing the first moments of the universe’s existence.
The component, known as B-mode polorization, is caused by gravitational lensing, which is the bending of light by massive structures as it travels across the universe.
CMB is the most ancient light, and has traveled almost uninterrupted across the Universe. It contains a wealth of information as it has encountered matter from a multitude of galaxies throughout the universe.
Read more at National Science Foundation, Hershel Space Observatory