# R3 | perplexity/sonar-pro | run 2

## 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**.[1][2] Penrose received one half of the prize **“for the discovery that black hole formation is a robust prediction of the general theory of relativity,”** while Genzel and Ghez shared the other half **“for the discovery of a supermassive compact object at the centre of our galaxy.”**[1][2]

## Details
- **Roger Penrose** — one half, for showing that black hole formation follows from general relativity.[1][2]
- **Reinhard Genzel** and **Andrea Ghez** — the other half, for discovering the supermassive compact object at the center of the Milky Way.[1][2]

Would you like a one-sentence explanation of why this discovery was important?
