Chapter 1
The invisible anchor at the center
Chapter 2
Taking the first picture of a monster
Chapter 3
Extreme physics in the danger zone
Chapter 4
The past and future of our black hole
YOUR GOAL
Master of Discovering Sagittarius A*
Ch 3 · Extreme physics in the danger zone
artiteacher Sagittarius A* Black Hole
(Call) In our galaxy's core, extreme! (Response) Yeah, Sgr A* spins! (Call) Warping spacetime, a wild dream, (Response) Like a football, it begins!
artiteacher According to Einstein's theory of relativity, time passes much slower near Sagittarius A* than on Earth.
artiteacher An object falling into a black hole experiences extreme stretching called spaghettification.
Fun Fact
Spaghettification term: The term spaghettification was popularized by physicist Stephen Hawking in his famous book A Brief History of Time.
Quiz
What are the sudden bursts of light and X-rays from the gas around Sgr A* called?
Quiz
Which physicist's theory of relativity predicted that gravity can slow down time?
Quiz
What is the scientific term for the boundary of a black hole where nothing can escape?