Andrea Ghez
Nobel Prize lecture
From the Possibility to the Certainty of a Supermassive Black Hole
Andrea Ghez delivered her Nobel Lecture on Tuesday 8 December 2020. She was introduced by Professor Ariel Gobar.
Streams during Nobel Week
Watch the 2025 Nobel Prize lectures, Nobel Week Dialogue, the prize award ceremonies in Oslo and Stockholm and Nobel Peace Prize Forum here at nobelprize.org.
Explore prizes and laureates
Look for popular awards and laureates in different fields, and discover the history of the Nobel Prize.