Hear the whispering voice of gravitational waves

Scientists have taken the world a step closer to 'hearing' the waves of gravity spreading in space and time as genius scientist Albert Einstein predicted in the early 20th century.

Artwork: NASA

Researchers at the Jet Research Institute (JPL) of the US Aeronautics Agency (NASA) have tested a system called cosmic antenna measuring interference waves with this device that will be put on space. to detect very light signals that are difficult to detect like the whispering voice of gravitational waves.

According to scientists, this is a challenging and not easy task.

Like a boat swimming across the ocean creating waves on the water, celestial bodies such as stars or black holes moving in the universe create gravitational waves on the background of space-time.

A moving object with a larger mass creates a stronger wave, and the faster a moving object produces more waves in a specified time.

NASA said the new JPL experiments have achieved a milestone - for the first time demonstrating that it is possible to effectively control too strong noise in the laser beams of LISA devices to ' hear ' those Sweet sound of elusive wave type like gravitational wave.

To detect this type of wave, NASA experts built extremely accurate sound meters and were forced to find ways to eliminate the noise in the laser beam as the scream of a thunderstorm to get. You can hear the sound of gentle gravitational waves like the sound of a feather falling to the ground.

It is expected that the LISA device, a joint project between NASA and the European Space Agency (ESA) can be launched into space by 2020 or later.