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#interplanetary

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@w3cdevs @w3c this topic has fascinated me. I’ve wondered about caching or other things that could be done for astronauts. There are many asynchronous protocols, but so much of the Internet uses TCP, and won’t work well with caching. Delay Tolerant Networking has been one hope: en.m.wikipedia.org/wiki/Delay- #interplanetary #network

en.m.wikipedia.orgDelay-tolerant networking - Wikipedia
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On #Earth, 2.4 mSv is normal. Above 100 mSv, cancer is likely. People on the #ISS face levels of 200 mSv, and #interplanetary levels of #radiation ☢️ are around 600 mSv. Researchers speculate that travel to #Mars 🔴 could involve a 30% risk of #cancer.
#Metals, including #lead and #aluminum, would make poor shields 🛡️ in #DeepSpace medicalnewstoday.com/articles/

#RadiationProtection
#HumanSpaceflightHealth

Medical News Today · The health hazards of space travelPar Yvette Brazier
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#ElonMusk's #influence youtube.com/watch?v=tYAD6oQZNc

"#Multinational corporations have grown so large as a result of #globalization that they have sufficient economic power to take over or strongly manipulate national #governments, continually attempting to take over competitors in order to become the sole controller of the #interplanetary market" en.wikipedia.org/wiki/Mars_tri

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#Psyche ☄️: New data on density, #radar properties, and #spectral signatures indicate that #Psyche is likely made of a mixture of rock and metal, with #metal ⛏️💰 comprising between 30-60% 📊 of its volume psyche.asu.edu/mission/faq

#NASA Jul 18, 2023 Psyche is set to launch atop a #SpaceX #FalconHeavy (the first #interplanetary 🪐 launch for that #rocket 🚀) from #SpaceLaunchComplex 39A at Kennedy #SpaceCenter at 10:38 a.m. EDT (7:38 a.m. PDT) on 📆 Oct. 5 nasa.gov/feature/jpl/nasa-s-ps

The current known #asteroid ☄️count is: 1,299,396 📈 solarsystem.nasa.gov/asteroids

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@atomicpoet @mastodonusercount

Sounds like #Mastodon, except for the "#interplanetary" ;). What are the pros and cons?

"#Misskey is an advanced interplanetary microblogging platform where users can write, share attachments, communicate, interact, and connect to other services like Mastodon, Pixelfed, and more. Being a decentralized and open-source platform, Misskey enables users to create independent servers and allows them to manage files in one single place...."

valasys.com/everything-to-know

Valasys MediaEverything to know about Misskey platform - Valasys MediaMisskey is a decentralized, open-source, free, and fully customizable microblogging platform with powerful & highly advanced features like cloud storage.

🌍 #Marble uses #OpenStreetMap data - for #Earth, not (yet) for the #interplanetary #maps 🗺️ of other #planets 🪐. You may even show a #satellite' s 🛰️ #orbit

#Wikipedia : "Marble is a #virtual #globe application which allows the user to choose among the #Earth, the #Moon🌙 , #Venus, #Mars 🔴 and other planets to display as a #3D model" en.wikipedia.org/wiki/Marble_%

Download : marble.kde.org/install.php for #Linux, #MacOS, #Windows, #Android

#PODIUM is a compact spacecraft #navigation unit, currently being designed to provide #interplanetary missions with autonomous position and velocity estimations. The unit will make use of #Pulsar X-ray observations to measure the distance and distance rate from the host #spacecraft to the Solar System Barycenter: arxiv.org/abs/2301.08744

arXiv.orgPODIUM:A Pulsar Navigation Unit for Science MissionsPODIUM is a compact spacecraft navigation unit, currently being designed to provide interplanetary missions with autonomous position and velocity estimations. The unit will make use of Pulsar X-ray observations to measure the distance and distance rate from the host spacecraft to the Solar System Barycenter. Such measurements will then be used by the onboard orbit determination function to estimate the complete orbital elements of the spacecraft. The design aims at 6 kg of mass and 20 W of power, in a volume of 150 mm by 240 mm by 600 mm. PODIUM is designed to minimize the impact on the mission operational and accommodation constraints. The architecture is based on a grazing incidence X-ray telescope with focal distance limited to 50 cm. The effective area shall be in the range 25 to 50 cm2 for photon energies in the range 0.2-10 keV, requiring nesting of several mirrors in the Wolter-1 geometry. Grazing incidence angles will be very small, below 2 deg. The current target FOV is 0.25 deg. The pulsars photon arrivals are detected with a single pixel Silicon Drift Detector (SDD) sensor with timing accuracy below 1usec. The unit has no gimbaling to meet the applicable power, size and mass requirements. Instead, the host spacecraft shall slew and point to allow pulsar observation. The avionics architecture is based on a radiation hardened LEON4 processor, to allow a synchronous propagation task and measurement generation and orbit determination step in an asynchronous task. PODIUM will enable higher autonomy and lower cost for interplanetary missions. L2 space observatories and planetary flybys are the current reference use cases. Onboard autonomous state estimation can reduce the ground support effort required for navigation and orbit correction/maintenance computation, and reduce the turnaround time, thus enabling more accurate maneuvers, reducing the orbit maintenance mass budget.