Black hole information paradox

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/black-hole-information-paradox

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the principle at stake?Unitarity in quantum mechanics, which states that information is conserved over time
2. What is the proposed solutions?Theories include firewalls, the holographic principle, fuzzballs, and modifications to spacetime
3. What is a black hole?A black hole is a region in space where gravity is so strong that nothing, not even light, can escape once it crosses the event horizon. It acts like a cosmic vacuum cleaner that pulls in everything around it.
4. Why does a black hole seem to lose information?Classical physics says anything that falls in disappears forever, so the unique details of that object seem gone. Quantum physics says information can never be lost, so this creates a puzzle.

Unitarity: A principle in quantum mechanics stating that information is never lost, only transformed.
Holographic Principle: The idea that the information content of a volume of space can be encoded on its boundary surface.