What is high altitude balloon satellite?

Geostationary balloon satellites (GBS) are proposed high-altitute balloons that would float in the mid-stratosphere (60,000 to 70,000 feet (18 to 21 km) above sea level) at a fixed point over the Earth’s surface and thereby act as atmosphere analogues to satellites.

Is skyhook possible?

While no skyhook has yet been built, there have been a number of flight experiments exploring various aspects of the space tether concept in general.

How does a sky hook work?

A Skyhook is simply a rotating satellite with a very long tether on one-side and a smaller tether with a counterweight on-the-other. Then when the tether-end has rotated to the point where it is facing away from the Earth its velocity is in the same direction as the orbit.

How much does a high-altitude balloon cost?

A high-altitude balloon system called ValBal flies for days at a time at a cost under $1,000, putting it within reach of start-ups and even hobbyists.

What are high altitude balloons made of?

polyethylene
Some heavy-payload high-altitude balloons have been made of nylon laminated to polyester film, but most research balloons use very thin polyethylene. Some of these polyethylene films are less than a tenth of a millimetre thick. In order to carry a payload, the seams are reinforced with load-bearing tape.

How much would it cost to build a skyhook?

Currently, each launch of this rocket costs around $115,000,000. This cost allows about 64 tonnes of stuff to be delivered to low-Earth orbit (which is about the altitude of the ISS, 250 miles, or 400 km).

How much would a sky hook cost?

Is Fulton balloon real?

This system was developed by inventor Robert Edison Fulton, Jr., for the Central Intelligence Agency in the early 1950s. The earlier system did not use a balloon, but a line stretched between a pair of poles set in the ground on either side of the person to be retrieved.