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Nobel Prize in Physics

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  1. Science and Technology- developments and their applications and effects in everyday life Achievements of Indians in science & technology; indigenization of technology and developing new technology.


Nobel Prize in Physics


Context: Three scientists- Canadian-American cosmologist James Peebles and Swiss astronomers Michel Mayor and Didier Queloz- have jointly been awarded the 2019 Nobel Prize in physics for encouraging the growth of the “understanding of our place in the Universe”.



  1. Peebles findings:

He won one-half of the prize” for theoretical discoveries that have contributed to our understanding of “how the Universe evolved after the Big Bang“.

Using theoretical tools and calculations, he drew a link between the temperature of the radiation emitted after the Big Bang and the amount of matter it created.

His work showed that the matter known to us — such as stars, planets, and ourselves — only makes up five percent, while the other 95 percent is made up of “unknown dark matter and dark energy”.



  1. Michel Mayor and Didier Queloz:

They shared the prize for their discovery of an exoplanet outside our solar system orbiting a solar-type star in the Milky Way.

They were able to detect a gaseous ball similar in size to Jupiter, orbiting a star 50 light years from our own Sun.

Harnessing the Doppler effect, the pair proved the planet, known as 51 Pegasus b, was orbiting its star.


Sources: the Hindu.