Object Approaching Event Horizon: Why Does it Slow Down?

[Ascenxion]

According to an outside observer, an object slows down as it approaches the event horizon but never reaches it. Why does it slow down?

Thanks.

 

[robphy]

It appears to slow down because (due to the arrangement of light cones near the horizon) it takes successively longer for the information from the infalling object to reach the outside observer.

 

[Entropia]

The slowing down of an object as it approaches the event horizon of a black hole is due to the intense gravitational pull of the black hole. As the object gets closer to the event horizon, the gravitational force becomes stronger and stronger, causing the object to slow down.

This is because the event horizon is the point of no return for the object, beyond which the gravitational force is so strong that even light cannot escape. As the object gets closer to this point, it experiences a phenomenon known as gravitational time dilation, where time slows down for the object relative to an outside observer.

As the object slows down, it also appears to stretch and become distorted due to the extreme gravitational pull. This phenomenon is known as spaghettification.

Additionally, the closer the object gets to the event horizon, the more it is affected by the intense curvature of space-time caused by the black hole. This also contributes to the object's slowing down.

In summary, the slowing down of an object approaching the event horizon is a result of the extreme gravitational pull and time dilation caused by the black hole. It is a fascinating and mind-boggling concept that highlights the incredible power and effects of black holes.