# Do black holes exhibit length contraction just like anything else being observed moving at high velocity?

My intuition is telling me they would experience length contraction the same as anything else but I cannot find anything that says this would be the case.

• FWIW: "length contraction" is not something that things "experience." It's something that you observe when you measure the length of a thing that is flashing past you at relativistic speed. Suppose it's a space ship. You might observe it to be contracted in the direction of its flight, but the crew on the ship won't notice anything out of the ordinary. – Solomon Slow Apr 5 at 19:46
• I've removed a number of comments that were attempting to answer the question and/or responses to them. Please keep in mind that comments should be used for suggesting improvements and requesting clarification on the question, not for answering. – David Z Apr 5 at 22:27
• Your question is unclear. Are you asking if length contraction applies to the Schwarzschild radius of a black hole that's observed to be traveling at a significant fraction of light speed? Bear in mind that the event horizon itself isn't visible. Also, the effect of length contraction on the appearance of a ball at high speed is complicated due to the time it takes light to travel from the various parts of the ball to the observer, see en.wikipedia.org/wiki/Terrell_rotation – PM 2Ring Apr 6 at 1:10
• Ok, my question is asking about the event horizon. Would the black hole appear to flatten as it approaches the speed of light? – Joe Apr 6 at 11:53
• I'm a bit surprised people are saying this is unclear. In the coordinates of the Schwarzschild observer the event horizon is a sphere. The question is simply in the coordinates of an observer at infinity boosted relative to the Schwarzschild observer is the event horizon still a sphere? – John Rennie Apr 6 at 12:10