Published: Wed, October 09, 2019
Global News | By Blake Casey

Physics Nobel awarded for exoplanet and cosmological discoveries

Physics Nobel awarded for exoplanet and cosmological discoveries

Scientists James Peebles, Michel Mayor and Didier Queloz won the 2019 Nobel Prize for Physics for ground-breaking work in astronomy, the award-giving body said on Tuesday.

A Canadian-American cosmologist and two Swiss scientists won this year's Nobel Prize in Physics on Tuesday for their work in understanding how the universe has evolved from the Big Bang and the blockbuster discovery of the first known planet outside our solar system. He discovered key aspects of how cells sense and adapt to changing oxygen levels through his studies of a protein that is impaired in the hereditary cancer, von Hippel-Lindau (VHL) disease.

The award follows "a long, long period of work, with colleagues".

Today's Nobel Prize in physics was evenly split between two discoveries and, thus, unevenly split among the three honored.

Peebles, who works as a professor at Princeton University, did his undergraduate degree at the University of Manitoba. His research led to the revelation that just 5% of the universe is normal matter and energy, while about 95% is invisible stuff that physicists call dark matter and dark energy.

On October 6, 1995, Michel Mayor and Didier Quéloz announced the discovery of the first planet orbiting a star other than our sun. "Do you think there is life on other planets?" Since their initial discovery, more than 4,000 exoplanets have been found in our home galaxy, according to the Royal Swedish Academy of Sciences. Oxygen-sensing machinery is essential for fetal development, as it controls normal blood vessel formation and the development of the placenta, the Nobel Prize organization wrote. I would be very hard-pressed to say.

The University of Geneva has quoted Michel Mayor and Didier Queloz as saying that "this discovery is the most exciting of our whole career and for it to be rewarded with a Nobel Prize is simply extraordinary".

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"I was not working alone", Peebles said by telephone during a news conference in Stockholm. "In addition to laying a great deal of the theoretical groundwork for modern cosmology, Jim pioneered numerous methods that have made cosmology a predictive science and one that allows us to test our theories with observational data". Rather than being limited to the Solar System's eight planets, we can now test models of planet formation against thousands of exosolar systems.

The prize in economic sciences, which has been awarded 50 times, will be announced on Monday, Oct. 14. "It's great that the research on a very rare disorder such as von Hippel-Lindau disease was instrumental in providing the insights into something as fundamental as oxygen sensing. the observations that they've made are wonderful", he says.

William G. Kaelin Jr., Sir Peter J. Ratcliffe and Gregg L. Semenza won the 2019 Nobel Prize in physiology or medicine.

This year's Nobel Prize is worth 9 million kronor ($918,000).

On Friday the action moves to Norway where the Peace Prize is awarded, with bookies predicting a win for Swedish teen climate activist Greta Thunberg on betting sites such as Ladbrokes.

On Thursday, the Swedish Academy will announce one literature laureate for 2018 and one for 2019, after postponing last year's award due to a sexual harassment scandal that exposed deep rifts among its 18 members.

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