What is the main challenge astronomers face when trying to directly detect black holes?(1 point) Responses Black holes are too small. Black holes are too small. Black holes are too black. Black holes are too black. Black holes are empty. Black holes are empty. Black holes trap all light.

The main challenge astronomers face when trying to directly detect black holes is that **black holes trap all light.** This means they do not emit light themselves and are extremely difficult to observe directly. Instead, astronomers usually infer their presence by observing the effects of their gravity on nearby stars and gas.