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What is the purpose of the 'evolved Laser Interferometer Space Antenna (eLISA)' project?

  1. A.To detect neutrinos
  2. B.To detect gravitational waves
  3. C.To detect the effectiveness of missile defence system
  4. D.To study the effect of solar flares on our communication systems
▶ Answer & Explanation

Correct answer: B. To detect gravitational waves

The evolved Laser Interferometer Space Antenna (eLISA) is a proposed space-based observatory designed to detect gravitational waves. Gravitational waves are ripples in spacetime caused by catastrophic cosmic events, and their detection provides crucial insights into the universe's most extreme phenomena and fundamental physics.

Source: UPSC gs1 2017

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