Stratospheric satellites

A stratospheric satellite means a hydrogen balloon that is in a very high atmosphere. The idea of that system was introduced by the researchers of the University of Amsterdam. 

The mylar balloon can fly in a high atmosphere or even in space. In the 1960s NASA send two mylar balloons called Echo-satellites that were just filled with gas in orbital trajectory. Similar balloons can fill hydrogen and send it to the high atmosphere. 

The fundamental technology that can improve communication and help people to travel to the space cheaper can be the group of mylar balloons. The mylar balloon that is filled using hydrogen can rise to extremely high altitudes. And that system can be modular. The gondola that is hanging below it is the mission pack for that system which can act as the stratospheric satellite system. 

The large-size mylar balloons can raise communication systems to the edge of the space. And they can partially replace traditional satellites. The high-flying atmospheric satellites can also have things like camera systems and laser- or regular radars and they can observe things that are below them. 

Image 2) The Echo II balloon satellite blew in full scale. 

Or they can rise the small rocket or space shuttle to the outer edge of the atmosphere. And that makes shooting satellites to orbiters cheaper.

But the stratospheric satellites can be small-size. They can use for taking air samples. The thing is that the balloon satellite network can also use to block the GPS. The idea is the plasma field is made between those balloons. And that denies the communication. 

The thing is that the high-atmospheric platform can replace the traditional GPS. The idea is that the own men will equip with laser pointers and the system follows the ground below it by using high-resolution cameras. The laser pointers are aimed at the air and they are visible in that high-resolution TV systems. 

By the way... 

The same technology that is used in the atmospheric satellites can use also for manned stratospheric laboratories. Of course, those laboratories can also be remote-controlled. 

There is the possibility that also the large-scale structures are hanging from the balloons. The idea is that the multiple balloons can use to hang even the large-scale stations. The hydrogen-based mylar balloon can use to carry manned modules. 

There is also the possibility that below the parachute is formed the hydrogen bubble. That raises the capsule to a high atmosphere. But a closed mylar balloon would be safer. 

And they can hang the module long time. In that model, the mylar balloon can simply be put below the parachute. And that thing can pull the module to a high atmosphere. 

https://en.wikipedia.org/wiki/Project_Echo

Image 2) https://www.rocketstem.org/2014/03/12/bigelow-promises-more-space-at-less-cost-with-inflatable-space-habitats/

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