General Discussion
In reply to the discussion: Missing Malaysia Airlines Plane Hijacked, Official Confirms [View all]Travis_0004
(5,417 posts)They have a limited field of view. They can't just take a picture of half the earth at a time. During the cold war, US and Russian's would play hide and seek from satellites. They knew when they would be passing overhead, and could hide when the satellite was passing. When it was gone, they got back to work.
There is a lot of new technology since the cold war, and satellites have improved. I don't know what a spy satellite is capable of, but the fact that they are flying U2 planes, and a lot of drones (some of the drones do not have any weapons, so they are not being used as attack vehicles) tells me that satellites can not just see everything at once. If they could, they would not spend the money to fly a spy plane over dangerous territories. If the US wanted to view my backyard, they could wait until a satellite is overhead, and take a picture. It would happen quickly, within a few hours, but they can't just pull up a picture of my backyard at a specific time in the past, and they probably can't spot a plane. If they suspected it was on an island, they could check the island quickly, but you can't just scan every island on earth in a few minutes.