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What is the cost to NASA per launch to ISS of Starliner vs Crew Dragon? According to a 2019 report by NASA's Office of the Inspector General (OIG), the launch costs are (in million\$): Vehicle cost per astronaut cost per launch SpaceX Crew Dragon 55 209 Soyuz MS 86 Boeing CST-100 Starliner 90 345 So, out of the three vehicles currently being used to ...


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It's all a matter of link budget. Globalstar, for example, has satellites at 1400 kilometers, usable from a satellite phone with a low-gain omnidirectional antenna, as are Iridium's satellites at 780. Both provide narrowband to midband internet access. Inmarsat, Thuraya, and plenty of others have satellites in geostationary orbit at 35,786 kilometers that ...


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What are the particular reasons that the Dragon Capsule is not communicating via Starlink... As @JörgWMittag points out the capsule orbited at an altitude higher than the Starlink satellites. The Starlinks currently have three types of internet-related communication: downwards with customers fixed on the Earth's surface below the satellites (except an ...


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As geoffc said, the Falcon Heavy is not mainly assembled on the TEL. To elaborate, the upper rings are removed while the lower remains when the booster mating process begins. When the boosters are all mated, the second stage is then mated using the rings and the rollers. Afterwards, the entire structure is lifted using 4 spreader beams. (3 bottom, 1 top) ...


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Why audio/video on the Dragon Capsule are on separate streams / limited bandwidth? @uhoh's answer gives insight into the practical reasons for separating audio and video streams. An apparent example of these broadcast characteristics can be seen in the Inspiration 4 live orbit broadcast starting at about 10:17 I have not ...


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The trick in this question is the term "theoretical", which the OP left open for you to show the "limit" (if any). "Theoretical" could mean: At any cost. Then you can try to increase the satellite antenna gain (in future Starlink generation(s)) to compensate for the loss of gain in the user terminal (as suggested in comments ...


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As he says the charcoal in the experiment is very hot (plus charcoal has a lot of carbon dust all over it, which is really flammable stuff), even then the charcoal doesn't burn until after it bounces out of the liquid oxygen, having vaporised some oxygen. To summarise we have hot carbon dust in an almost pure oxygen atmosphere. By contrast COPV's use carbon ...


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