Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation?

1. A. ‘Higgs boson particles’ were detected.
2. B. ‘Gravitational waves’ were detected.
3. C. Possibility of inter-galactic space travel through ‘wormhole’ was confirmed.
4. D. It enabled the scientists to understand ‘singularity’.

Answer: B

Explanation

The LIGO detectors discovered the first gravitational waves produced by two giant merging blackholes in 2016.