What is the purpose of the ‘evolved Laser Interferometer Space Antenna (eLISA)’ project?
✓ Correct answer: b) To detect gravitational waves
ExplanationThe evolved Laser Interferometer Space Antenna (eLISA) is a mission led by the European Space Agency (ESA) to detect and measure gravitational waves.Gravitational waves are ripples in spacetime caused by massive cosmic events, such as merging black holes or neutron stars. eLISA aims to provide a new way of observing the universe by directly measuring these waves which are otherwise invisible to traditional telescopes.Unlike ground-based detectors like LIGO, eLISA will operate in space, allowing it to observe lower-frequency gravitational waves that cannot be detected on Earth. : Other Projects to Measure The Gravitational Waves Project Country (Locations) Remarks LIGO (Laser Interferometer Gravitational- Wave Observatory) Observatories in the USA and Italy Made the first direct detection of gravitational waves in 2015. LIGO-India India, Planned Ground-based interferometer that collaborates with LIGO to detect gravitational waves.UPSC GS Paper-I PYQs 558 Virgo Italy Virgo collaborates with LIGO and KAGRA to pinpoint the origins of these waves.KAGRA (Kamioka Gravitational Wave Dete
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