A student researching black holes has taken the following notes:
• Black holes form when massive stars collapse at the end of their lives • Their gravity is so strong that not even light can escape • The boundary beyond which nothing escapes is called the event horizon • Supermassive black holes exist at the centers of most galaxies • Scientists captured the first image of a black hole in 2019
The student wants to explain what makes black holes unique. Which choice most effectively uses relevant information from the notes?
Black holes form when massive stars collapse at the end of their lives.
Scientists captured the first direct image of a black hole in 2019.
Black holes are unique because their gravity is so intense that not even light can escape beyond the event horizon.
Supermassive black holes exist at the centers of most galaxies.
Correct Answer: C
Choice C. Gravity so strong light can't escape makes black holes unique.