The main challenge astronomers face when trying to directly detect black holes is C. Black holes trap all light. This is because black holes are characterized by their event horizons, beyond which nothing, not even light, can escape. As a result, black holes cannot be observed directly; astronomers instead infer their presence through the effects they have on nearby objects and light.
What is the main challenge astronomers face when trying to directly detect black holes?
A. Black holes are too black
B. Black holes are too small
C. Black holes trap all light
D. Black holes are empty
1 answer