# R3 | openai/gpt-5.6-luna | 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 awarded to **Roger Penrose**, **Reinhard Genzel**, and **Andrea Ghez** for major discoveries about black holes. Penrose received one-half of the prize; Genzel and Ghez jointly shared the other half. ([nobelprize.org](https://www.nobelprize.org/prizes/physics/2020/summary/?utm_source=openai))

- **Roger Penrose:** Awarded “for the discovery that black hole formation is a robust prediction of the general theory of relativity.”
- **Reinhard Genzel and Andrea Ghez:** Awarded “for the discovery of a supermassive compact object at the centre of our galaxy”—the object now understood to be the supermassive black hole at the center of the Milky Way. [Nobel Prize summary](https://www.nobelprize.org/prizes/physics/2020/summary/) ([nobelprize.org](https://www.nobelprize.org/prizes/physics/2020/popular-information/?utm_source=openai))

Would you like a brief explanation of how their work established the existence of the Milky Way’s central black hole?
