Question

what is the main challenge astronomers face when trying to drectly detect black holes?
a. black holes are empty
b. black holes are to black
c. black holes trap all light
d. black holes are to small

Answer 1

The main challenge astronomers face when trying to directly detect black holes is **c. black holes trap all light**. Black holes have such strong gravitational fields that they do not allow anything, including light, to escape from them once it crosses the event horizon. This makes them invisible to conventional detection methods. Instead, astronomers typically infer the presence of black holes by observing the effects of their gravity on nearby objects or the radiation emitted by material falling into them.