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Warning!
At least some content in this article is derived from information featured in Harry Potter: Hogwarts Mystery. Spoilers will be present within the article. |
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"Is this all real? Or has this been happening inside my head?"
The topic of this article is of a real-life subject that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really existed), and, as such, details contained in this article may differ from real world facts. |
- "Good evening, class! Today we will be studying one of my favourite subjects. That is, Black Holes and Wormholes! Let us begin."
- — Professor Sinistra to Astronomy students[src]

A black hole and a wormhole
A black hole is a region of spacetime featuring a gravitational field so strong that not even light can escape. They are the product of extremely massive stars collapsing into points dense enough to warp the fabric of spacetime.[1]
History[]
Stephen Hawking wrote about black holes in his book A Brief History of Time.[2] Professor Aurora Sinistra taught her seventh-year Astronomy students about black holes, along with wormholes, during the 1990–1991 school year at Hogwarts School of Witchcraft and Wizardry.[3]
Behind the scenes[]
- A Brief History of Time covers the hypothesis that black holes might be utilised for time travel. Time travel plays an important role in the plot of Harry Potter and the Prisoner of Azkaban, its film adaptation, and also Harry Potter and the Cursed Child.
Appearances[]
- Harry Potter and the Prisoner of Azkaban (film) (First mentioned) (Mentioned on book cover)
- Harry Potter: Hogwarts Mystery (Mentioned only)
Notes and references[]
- ↑
Black hole on Wikipedia
- ↑ Harry Potter and the Prisoner of Azkaban (film), Chapter 4 (The Leaky Cauldron) (see this image and this image)
- ↑ Harry Potter: Hogwarts Mystery, Year 7, Chapter 38 (Tensions Rise) - Astronomy Lesson "Black Holes and Wormholes"