"Whisper from the Universe"- LIGO Detects Gravitational Waves

100 years after Einstein predicted the gravitational waves Scientist at LSC have successful to detect them. LIGO Scientific Collaboration (LSC) is a group of more than 1000 scientists worldwide who have joined together in the search for gravitational waves.

For the first time, Laser Intereferometer Gavitational Wave Observatory (LIGO) have detected ripples in the fabric of spacetime called gravitational waves, arriving at Earth generated by the collision of two black holes in the distant universe. The signals detected are extremely subtle which disturb the intereferometers by just fractions of the width of an atom. But the black hole merger was picked by two widely separated LIGO facilities in the US. This confirms a major prediction of Albert Einstein's 1915 general theory of relativity and opens an unprecedented new window to the cosmos.

In 1916, the year after correctly formulating the theory of general relativity, Albert Einstein predicted that, when anything with mass accelerates, it should make waves in space time, like a boat going donuts sends waves lapping towards shore. However, Einstein himself believed that any attempts to detect these “gravitational waves” would prove futile, as the effect that they have on their environment is miniscule.

According to Prof Danzman (Albert Einstein Institute) , this detection is the beautiful signature of the merger of two black holes. And also Prof Bernard Schutz from Cardiff University, UK says that the Gravitational waves go through everything and they hardly affected by what they pass through and its act like a perfect messenger. He added certain predictions saying that this information carried on the gravitational wave is exactly the same as when the system sent it out; and that is unusual in astronomy. We cannot see light from whole regions of our own galaxy because of the dust that is in the way, and we cannot see the early part of the Big Bang because the universe was opaque to light earlier than a certain time. But with detection of Gravitational waves it is risen the expectation to see the Big Bang itself. 

This is only the beginning of the field of gravitational wave astronomy. Gravitational waves ought to let astronomers get a better look at dark, distant, supermassive, fast moving, cataclysmic stuff using mass and movement instead of mere light. Scientists anticipate detecting other events including neutron stars in our galaxy, other black holes and supernova explosions.