So the rocket will be put into the ground 'cause the space port is in cold climate.But when the fire is lit under the rocket to send it into space will the explosion blow-up the surrounding earth?Is it feasible to have rocket launches from below ground?
Some countries do have silos underground, it doesnt necessarily mean you dig a hole and put it there! There are proper shock proofing within the walls of the bunker to absorbe any sound or heat or other forms of energy which might damage the walls.
Underground launches are actually quite common. Many test firings of ballistic missiles such as Titan II (same launcher as used in the Gemini program of the 1960s), Minuteman and Peacekeepers are launched form underground silos. Most launches today are above ground, but nothing is to sat they could not be deployed or launched from underground. Being underground, the launch stack would be protected from foul weather or other possible hazards. The rocket exhaust would be directed away so as not to do damage to the launch vehicle. Underground launches would be no problem. The biggest problem is being far enough away from a populated area in case of launch vehicle failure.
