The terms lsquo Event Horizon rsquo lsquo Singularity rsquo String Theory rsquo and lsquo Standard M...........

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The terms ‘Event Horizon’, ‘Singularity’, `String Theory’ and ‘Standard Model’ are sometimes seen in the news in the context of

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UPSC CSP Previous Year Paper (2017)

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Observation and understanding of the Universe

Study of the solar and the lunar eclipses

Placing satellites in the orbit of the Earth

Origin and evolution of living organisms on the Earth

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Explanation:

The terms ‘Event Horizon’ explained as boundary in space-time, ‘Singularity’ is defined as location in space-time where the gravitational field of a celestial body becomes infinite. Both are related to Black Holes.

‘String Theory’ links together all physical aspects, and ‘Standard Model’ - unifying the four fundamental forces, are related to the observations and understanding of the Universe.