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LIGO second wave detection
January 11 , 2020
1654 days
1216
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- The LIGO (Laser Inferometer Gravitational-wave Observatory) detected gravitational waves due to collision of two neutron stars.
- This is the second time the gravitational waves are being detected.
- Neutron stars are the remnants of giant stars that died in a fiery explosion known as a supernova.
- They have a mass of about 1.4 times that of the sun.
- The neutron stars were at a distance of 520 million light years from the earth.
LIGO
- It is a massive observatory for detecting cosmic gravitational waves and for carrying out experiments.
- Currently LIGO operates three gravitational wave detectors at Livingston, Louisiana and Hanford at USA.
- LIGO India will come up in Maharashtra.
- LIGO - India project is piloted by Department of Atomic Energy (DAE) and Department of Science and Technology (DST).
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