Merger of two black holes , 100 times bigger than the Sun, holds what significance — CONCERN?

 

Gravitational Waves: A Comprehensive Overview is

 

 Picture this: you drop a pebble into a still body of water and observe the ripples it creates.  Envision this: right this second, waves of gravity are rippling through the very fabric of the cosmos, shattering our very idea of how the universe works.  These tiny waves, caused by massive events like black hole collisions, are allowing scientists to learn more about the cosmos.  In simple terms, this is why the recent finding of gravitational waves resulting from a merging of two enormous black holes is so intriguing.

 

 

 In what ways do gravitational waves work, and what exactly are they?

 

 Gravitational waves are created when large objects, like neutron stars or black holes, move or collide; they look like cosmic ripples in spacetime. Think of spacetime as a stretchy sheet; when anything huge, like a black hole, tugs at it, it causes waves to be emitted and propagate across the cosmos. We humans can detect the little and difficult-to-detect waves produced by mega-events like the merger of two black holes.

 

 Incredible technology is employed to identify these waves. Detectors like Virgo in Italy and KAGRA in Japan employ ultra-sensitive lasers to pick up on these minute waves, in addition to the LIGO detectors in the United States. Gravitational waves were detected in 2015, one hundred years after Einstein predicted them in 1915.  We now know more about the universe thanks to hundreds of identical events that have happened since then.

 

 Why Is the Most Recent Finding About Black Holes Important?

 

 Recently, there has been a lot of talk about an unusual black hole merging .  In a supermassive black hole merger, researchers picked up gravitational waves from two objects, one of which was 140 times the size of the Sun and the other 100 times. The resulting object is 225 times bigger than the Sun. And that's dwarfed by a merger in 2021 involving two black holes 80 and 65 times the Sun's mass. What's so absurd? Theoretically, black holes with masses between 100 and 150 solar masses shouldn't exist. The conventional wisdom holds that massive stars like that don't go out like rockets into black holes.

 

 Additionally, one of these black holes was spinning so rapidly that it was almost violating Einstein's rules of relativity. This finding, which was made by the LIGO-Virgo-KAGRA (LVK) collaboration, does not conform to our current theories about the formation of stars, black holes, or the universe as a whole.  Similar to discovering a missing element in a puzzle, this discovery is both exhilarating and somewhat perplexing.

 

 What do gravitational waves reveal about the cosmos?

 

 Observing gravitational waves has revolutionised cosmological research. To study space before 2015, astronomers relied on light, X-rays, or radio waves.  Black holes, dark matter, and dark energy aren't good candidates for those methods due to their near-invisible nature. Gravitational waves have given us a new method to "see" these mysterious cosmic regions. Each ripple, like a cosmic fingerprint, carries clues about its antecedents.

 Even though all objects in motion generate gravitational waves, only the biggest ones, like merging black holes, generate waves strong enough to travel enormous distances and reach detectors on Earth.  This opens the door for scientists to study things we couldn't see before.  India will be participating as well, with LIGO-India set to land in Maharashtra.  The fact that it will enhance our ability to detect these astronomical events is worth the delay (currently anticipated to be finished by 2030).  The more we learn about gravitational waves, the closer scientists are to unlocking the universe's greatest mysteries.

 In a nutshell, gravitational waves are opening our eyes to new things in the universe.  The latest black hole merger has scientists excited because it goes against their long-held beliefs regarding the nature of black holes and how stars evolve.  From the revolutionary detection made by LIGO to the promising results that LIGO-India could provide, these ripples are helping us bring cosmic order.  It's thrilling to be interested in the stars at the moment; what new discoveries could we make?