You will hear a lecture. After listening to the lecture, in 10 seconds, please speak into the microphone and retell what you have just heard from the lecture in your own words. You will have 40 seconds to give your response.
In the lecture, the speaker talks about black hole. At the beginning of the lecture, his video is about the black hole in the universe. Also, the speaker mentions, from the video, it can be seen that the middle area of the video is totally dark, that is the black hole. According to the speaker, on the right side of the video it can be observed that some planets can’t escape from the black hole and are being drawn to it. Lastly, the speaker indicates that we can also observe a bright ring around the black hole because that is the edge of the black hole so that the light can escape from it.
