Black Hole Discoveries Win 2020 Nobel Prize for Physics

Britain's Roger Penrose, Reinhard Genzel of Germany and US scientist Andrea Ghez won the 2020 Nobel Prize for Physics. (AP)
Britain's Roger Penrose, Reinhard Genzel of Germany and US scientist Andrea Ghez won the 2020 Nobel Prize for Physics. (AP)
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Black Hole Discoveries Win 2020 Nobel Prize for Physics

Britain's Roger Penrose, Reinhard Genzel of Germany and US scientist Andrea Ghez won the 2020 Nobel Prize for Physics. (AP)
Britain's Roger Penrose, Reinhard Genzel of Germany and US scientist Andrea Ghez won the 2020 Nobel Prize for Physics. (AP)

Britain's Roger Penrose, Reinhard Genzel of Germany and US scientist Andrea Ghez won the 2020 Nobel Prize for Physics for their discoveries about one of the most exotic phenomena in the universe, the black hole, the award-giving body said on Tuesday.

Penrose, professor at the University of Oxford, won half the prize for his work using mathematics to prove that black holes are a direct consequence of the general theory of relativity.

Genzel, of the Max Planck Institute and University of California, Berkeley, and Ghez, at the University of California, Los Angeles, shared the other half for discovering that an invisible and extremely heavy object governs the orbits of stars at the center of our galaxy.

Physics is the second of this year's crop of Nobels to be awarded, after three scientists won the medicine prize for their discovery of Hepatitis C on Monday.

Among the Nobel prizes, physics has often dominated the spotlight with past awards going to scientific superstars such as Albert Einstein for fundamental discoveries about the make-up of the universe, including the general theory of relativity.

"The discoveries of this year's Laureates have broken new ground in the study of compact and supermassive objects," David Haviland, chair of the Nobel Committee for Physics, said on awarding the 10 million Swedish crown ($1.1 million) prize.

"But these exotic objects still pose many questions that beg for answers and motivate future research."

Ghez is only the fourth woman to win the physics prize, after Marie Curie in 1903, Maria Goeppert Mayer in 1963 and Donna Strickland in 2018.

The Nobel prizes were created in the will of Swedish dynamite inventor and businessman Alfred Nobel and have been awarded since 1901.

This year's awards occur under the long shadow of the COVID-19 pandemic that has curtailed much of the usual festivities surrounding the prizes and sent the scientific world racing to develop a vaccine and treatment.



ChatGPT Adds Shopping Help, Intensifying Google Rivalry

FILED - 18 April 2023, Berlin: On the monitor of a cell phone you can see the ChatGPT logo. Photo: Hannes P Albert/dpa
FILED - 18 April 2023, Berlin: On the monitor of a cell phone you can see the ChatGPT logo. Photo: Hannes P Albert/dpa
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ChatGPT Adds Shopping Help, Intensifying Google Rivalry

FILED - 18 April 2023, Berlin: On the monitor of a cell phone you can see the ChatGPT logo. Photo: Hannes P Albert/dpa
FILED - 18 April 2023, Berlin: On the monitor of a cell phone you can see the ChatGPT logo. Photo: Hannes P Albert/dpa

OpenAI announced Monday that ChatGPT is now helping users find products online, enhancing its challenge to Google amid regulatory pressure on the search giant's market dominance.

The new shopping capability further blurs the line between AI chatbots and search engines, signaling OpenAI's ambition to compete with Google in a market the latter has controlled for decades.

"Search has become one of our most popular and fastest growing features, with over 1 billion web searches just in the past week," the San Francisco-based company said in a post on X.

Rolled out on Monday, the update allows shoppers to find and compare items through natural conversation, then connect directly to merchants for purchases.

"Instead of scrolling through pages of results, you can simply start a conversation," OpenAI's post said, adding that users could also ask follow-up questions or compare products.

ChatGPT's shopping feature initially focuses on fashion, beauty, and home electronics categories. Product recommendations are personalized and come from the web, not advertisements, OpenAI said.

To counter increasing competition from AI chatbots, Google has integrated its own Gemini assistant into search results, providing AI-generated answers above traditional website links.

The rivalry intensified last week when an OpenAI executive testified the company would consider purchasing Chrome if Google were forced to sell the browser as part of an ongoing US antitrust case.