In the BHFS visualization of the Schwarzschild black hole, which object is the antihorizon?
A. The gravitationally lensed image of the outside Universe. B. The Einstein ring. C. The dark red grid. D. The blue-white grid. E. It’s not visible in the visualization. Th 2009 Oct 22: • Which of the following did the Andromeda movie get right? A. The Andromeda had normal brightness. B. The spectrum of light from Andromeda was normal. C. The Andromeda was not torn apart by the tidal force from the stellar-mass black hole; D. When the Andromeda came back up off the horizon, it had lost 300 years; E. The Andromeda was pulled by the salvage ship off its frozen position on the horizon. Fri 2009 Oct 23: • Will the probe fall into the black hole? A. Yes. B. No. • Will the probe fall into the black hole? A. Yes. B. No. • If a photon (light ray) is emitted vertically upward at the horizon, what will happen to it? A. It will escape to the outside Universe. B. It will just stay at the horizon, going nowhere. C. It will fall into the black hole. D. It will go up, turn around, and come back down
