Scientists Hopfield and Hinton Win 2024 Nobel Prize in Physics

A screen shows the laureates of the 2024 Nobel Prize in Physics, US physicist John J Hopfield and Canadian-British computer scientist and cognitive psychologist Geoffrey E Hinton during the announcement by the Royal Swedish Academy of Sciences in Stockholm, Sweden on October 8, 2024. (AFP)
A screen shows the laureates of the 2024 Nobel Prize in Physics, US physicist John J Hopfield and Canadian-British computer scientist and cognitive psychologist Geoffrey E Hinton during the announcement by the Royal Swedish Academy of Sciences in Stockholm, Sweden on October 8, 2024. (AFP)
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Scientists Hopfield and Hinton Win 2024 Nobel Prize in Physics

A screen shows the laureates of the 2024 Nobel Prize in Physics, US physicist John J Hopfield and Canadian-British computer scientist and cognitive psychologist Geoffrey E Hinton during the announcement by the Royal Swedish Academy of Sciences in Stockholm, Sweden on October 8, 2024. (AFP)
A screen shows the laureates of the 2024 Nobel Prize in Physics, US physicist John J Hopfield and Canadian-British computer scientist and cognitive psychologist Geoffrey E Hinton during the announcement by the Royal Swedish Academy of Sciences in Stockholm, Sweden on October 8, 2024. (AFP)

US scientist John Hopfield and British-Canadian colleague Geoffrey Hinton won the 2024 Nobel Prize in Physics for discoveries and inventions that laid the foundation for machine learning, the award-giving body said on Tuesday.

The award comes with a prize sum of 11 million Swedish crowns ($1.1 million), which is shared between the winners if there are several. The physics prize is awarded by the Royal Swedish Academy of Sciences.

"This year's two Nobel Laureates in physics have used tools from physics to develop methods that are the foundation of today's powerful machine learning," the award-giving body said in a statement.

"Machine learning based on artificial neural networks is currently revolutionizing science, engineering and daily life." Widely considered the most prestigious prize for physicists across the world, it was created, along with awards for achievements in science, literature and peace, in the will of Alfred Nobel.

The prizes have been awarded with a few interruptions since 1901, though the Nobel economics honor is a later addition in memory of the Swedish businessman and philanthropist, who had made a fortune from his invention of dynamite.

Outside the sometimes controversial choices for peace and literature, physics often makes the biggest splash among the prizes, with the list of past winners featuring scientific superstars such as Albert Einstein, Niels Bohr and Enrico Fermi.

Last year's physics prize was awarded to Pierre Agostini, Ferenc Krausz and Anne L'Huillier for their work in creating ultra-short pulses of light that can give a snapshot of changes within atoms, potentially improving the detection of diseases.

Physics is the second Nobel to be awarded this week, after US scientists Victor Ambros and Gary Ruvkun won the medicine prize for their discovery of microRNA and its role in gene regulation, shedding light on how cells specialize.



China Says its Astronauts Complete Record-breaking Spacewalk

File Photo: Astronaut Liu Yang waves as she is out of a return capsule of the Shenzhou-14 spacecraft, following a six-month mission on China's space station, at the Dongfeng landing site in Inner Mongolia Autonomous Region, China December 4, 2022. China Daily via REUTERS
File Photo: Astronaut Liu Yang waves as she is out of a return capsule of the Shenzhou-14 spacecraft, following a six-month mission on China's space station, at the Dongfeng landing site in Inner Mongolia Autonomous Region, China December 4, 2022. China Daily via REUTERS
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China Says its Astronauts Complete Record-breaking Spacewalk

File Photo: Astronaut Liu Yang waves as she is out of a return capsule of the Shenzhou-14 spacecraft, following a six-month mission on China's space station, at the Dongfeng landing site in Inner Mongolia Autonomous Region, China December 4, 2022. China Daily via REUTERS
File Photo: Astronaut Liu Yang waves as she is out of a return capsule of the Shenzhou-14 spacecraft, following a six-month mission on China's space station, at the Dongfeng landing site in Inner Mongolia Autonomous Region, China December 4, 2022. China Daily via REUTERS

Two Chinese astronauts this week completed a world-record spacewalk of more than nine hours, according to a statement from China's Manned Space Agency, marking another milestone for Beijing's rapidly expanding space program.

The spacewalk, carried out by Cai Xuzhe and Song Lingdong outside the Tiangong space station in low-Earth orbit on Tuesday, was at least four minutes longer than the last record set by NASA astronauts James Voss and Susan Helms in 2001, according to Reuters.

The two astronauts of China's Shenzhou-19 mission donned their Feitian spacesuits to carry out an array of tasks on the station's exterior, including the installation of space-debris protection devices, China's space agency said.

"They successfully completed all the planned tasks and felt very excited about it," Wu Hao, a staffer from the China Astronaut Research and Training Center, told China Central Television, a state broadcaster.

The former Soviet Union in 1965 became the first nation to carry out a spacewalk. Since then, Russia and the United States have conducted hundreds of such missions, primarily outside the International Space Station for tasks ranging from solar panel installations to materials research.

The first spacewalk by a Chinese astronaut occurred in 2008.

China's spacewalking milestone this week comes amid a flurry of other recent cosmic achievements that have boosted Beijing's competitive footing with the United States.

China landed its first rover on Mars in 2021 and earlier this year became the first country to retrieve rock samples from the moon's treacherous far side in its Chang'e-6 mission.

Beijing is targeting 2030 to land its first astronauts on the moon to become the second country after the US to put humans there. Beijing has courted roughly a dozen countries for its International Lunar Research Station program, an effort to build a moon base on the moon's south pole.

That program rivals NASA's Artemis program, which aims to return US astronauts to the moon for the first time since the final Apollo mission of 1972.