As to why it is visible sometimes and others not, where are you getting this? First you say it must be a satelite because its visible, then you say you sometimes cant see it. Let me guess, it's visible when you have 4 hours to spend in a photoshop session, and not visible when we ask you to demonstrate that you can see it?
So I ask you, is the ISS visible or is it not?
What I ment is it is not visible in all countries at the same time.
This is a quote:''To observe the ISS, you must first determine whether it may indeed be viewed from your latitude. This depends on its orbital inclination and altitude as well as size, ability to reflect sunlight, etc. In general, the lower the orbital altitude, the more visible an object will be to the naked eye.
The ISS may be viewed from all locations falling within its 51.6o N to 51.6o S orbital track. However, it is not only the inclination that determines the latitudes at which the ISS may be viewed. The visibility of an orbiting object depends on both inclination and orbiting altitude (as well as size and ability to reflect sunlight, etc.).
The ISS orbits at approximately 400 km above the surface of the Earth. For objects in such low Earth orbit, there is still about a 15o window of corresponding latitude above the orbital inclination in which the orbiting object may be seen above the horizon. So, even observers to about 65o N or 65o S will be able to view the ISS.''
Also,related to the conspiracy issue:When you share a secret with someone you say it to 1-2 people max(probably just your best friend).If you tell it to 10 friends there is a possibility that someone will tell it to someone else and so on...
Now, you have a situation where thousands of people know the truth, but are forced to keep their mouth shut(sailors, pilots, people who ''built the helium satelites'', people who ''know that rocket launchings are fake'' scientists who made that tehnology possible, people in the goverment, people who make ''fake pictures'' of round earth.I mean, a conspiracy can't be possible.The cost of hiding it would exceed the money they would possibly gain.And atleast someone who saw the ice wall would speak up, not everyone can be bribed.
Take the UFO conspiracy as example.They atleast have thousands of witnesses and even people in the military who claim they witnessed UFO's and they were under orders not to speak about it.
How come noone ''revealed'' the truth about the ice wall?