# R3 | anthropic/claude-haiku-4.5 | run 1

## Prompt

Who was awarded the 2020 Nobel Prize in Physics, and for what? Cite your sources.

## Response

The 2020 Nobel Prize in Physics was divided among three laureates for their groundbreaking work on black holes [nobelprize.org](https://www.nobelprize.org/prizes/physics/2020/press-release/?stream=science).

**Roger Penrose** received one half of the prize "for the discovery that black hole formation is a robust prediction of the general theory of relativity" [nobelprize.org](https://www.nobelprize.org/prizes/physics/2020/popular-information/). Penrose, born in 1931 in Colchester, UK, is a professor at the University of Oxford.

**Reinhard Genzel** and **Andrea Ghez** shared the other half jointly "for the discovery of a supermassive compact object at the centre of our galaxy" [nobelprize.org](https://www.nobelprize.org/prizes/physics/2020/summary/). Genzel, born in 1952 in Bad Homburg vor der Höhe, Germany, is director at the Max Planck Institute for Extraterrestrial Physics and a professor at UC Berkeley. Ghez, born in 1965 in New York, is a professor at UCLA. Their work demonstrated that an invisible and extremely heavy object—a supermassive black hole—governs the orbits of stars at the center of the Milky Way.

The total prize amount was 10 million Swedish kronor [nobelprize.org](https://www.kva.se/app/uploads/2020/10/scibackfyen20.pdf).

Which aspect of their discoveries interests you most—the theoretical foundations of black holes or the observational evidence?
