R. Rafini and J. Weeler, 2 scientists on 1967, represented the space-time near black hole in a diagram Imagine an Astronomer and his friend are going to have an experiment, astronomer wants to go through black hole and his friend stay away from black hole and take signals astronomer sends. Before astronomer arrives to the Schwarzschild’s radius, he sends signals to his friend and his friend receive them without any problem (points A and B in Diagram 1) and his friend is traveling from past to the future in the space shuttle (line O in Diagram 1) But when astronomer enters to the Schwarzschild’s sphere, no signal will be delivered by his friend . https://www.profitablegatetocontent.com/e55amqzch?key=db8e434670b2905af60c347bd185cc1d The space time near black hole. Astronomer approaches to the black hole (point A to F) and sends signals to his friend who’s moving on line O in the Space Shuttle and receives astronomer’s signals. Also when astronomer gets out of the whi...