Chris J. Karr · @chris
87 followers · 827 posts · Server omgwars.com
@laimis And there's a part of me rooting for Astra to finally bite it, and for Peter Beck to pick up the Hall Effect engine Astra is selling (picked up from the Apollo Fusion acquisition) and making it part of Rocket Lab's Space Services portfolio.
It's not an engine powerful enough to lift anything out of Earth's gravity well, but IS being used on satellites already in orbit to navigate and maintain position.
#astr #rklb #rocketlab #astra #halleffectthruster
Spaceflight 🚀 · @spaceflight
1243 followers · 880 posts · Server techhub.social
#Starlink 🛰️ uses #HallEffectThrusters, which is a kind of #SpacecraftElectricPropulsion https://en.wikipedia.org/wiki/Spacecraft_electric_propulsion. 70% of the recent poll have just been plain wrong 🔮 about the type of #propulsion : https://en.wikipedia.org/wiki/Ion_thruster#Starlink
#HallEffectThruster (#IonThruster engines) use an #electrostatic potential to accelerate #ions up to high speeds https://en.wikipedia.org/wiki/Hall-effect_thruster#Principle_of_operation
#Electromagnetic thrusters (#PlasmaPropulsion engines) accelerate #ions either by the #Lorentz force or by the effect of electromagnetic fields where the electric field is not in the direction of the acceleration https://en.wikipedia.org/wiki/Plasma_propulsion_engine#Engine_types
It's all explained by #GalileoGalilei 📆 1564, #MichaelFaraday 📆 1791, #HendrikLorentz 📆 1853, #AlbertEinstein 📆 1879.Also check #Minkowski's 📆 1864 #spacetime 🤔 https://en.wikipedia.org/wiki/Minkowski_spacetime. Short after the #StoneAge 🐒 , #carburetors were usual, fueled by fossilized remains of dead plants 😁 https://en.wikipedia.org/wiki/Carburetor
#starlink #halleffectthrusters #spacecraftelectricpropulsion #propulsion #halleffectthruster #ionthruster #electrostatic #ions #electromagnetic #plasmapropulsion #lorentz #galileogalilei #michaelfaraday #hendriklorentz #alberteinstein #minkowski #spacetime #stoneage #carburetors
Spaceflight 🚀 · @spaceflight
1243 followers · 879 posts · Server techhub.social#Starlink 🛰️ uses #HallEffectThrusters, which is a kind of #SpacecraftElectricPropulsion https://en.wikipedia.org/wiki/Spacecraft_electric_propulsion. 70% of the recent poll have just been plain wrong 🔮 about the type of #propulsion : https://en.wikipedia.org/wiki/Ion_thruster#Starlink
#HallEffectThruster (#IonThruster engines) use an #electrostatic potential to accelerate #ions up to high speeds https://en.wikipedia.org/wiki/Hall-effect_thruster#Principle_of_operation
#Electromagnetic thrusters (#PlasmaPropulsion engines) accelerate #ions either by the #Lorentz force or by the effect of electromagnetic fields where the electric field is not in the direction of the acceleration https://en.wikipedia.org/wiki/Plasma_propulsion_engine#Engine_types
It's all explained by #GalileoGalilei 📆 1564, #MichaelFaraday 📆1791, #HendrikLorentz 📆 1853, #AlbertEinstein 📆 1879.Also check #Minkowski's 📆 1864 #spacetime 🤔 https://en.wikipedia.org/wiki/Minkowski_spacetime. Short after the #StoneAge 🐒 , #carburetors were usual, fueled by fossilized remains of dead plants 😁 https://en.wikipedia.org/wiki/Carburetor
#starlink #halleffectthrusters #spacecraftelectricpropulsion #propulsion #halleffectthruster #ionthruster #electrostatic #ions #electromagnetic #plasmapropulsion #lorentz #galileogalilei #michaelfaraday #hendriklorentz #alberteinstein #minkowski #spacetime #stoneage #carburetors
Spaceflight 🚀 · @spaceflight
1198 followers · 821 posts · Server techhub.socialComment with the three #hashtags you like most
#AsteroidMining
#AsteroidThreat
#CelestialBodyLanding
#DSOC (Deep Space Optical Communications)
#HallEffectThruster
#HumanSpaceflight
#HumanSpaceflightBasics
#HumanSpaceflightHealth
#HumanSpaceflightSecurity
#ISRU (in situ resource utilization)
#LaunchCost
#Lunar3dPrinting
#MoonMining
#PrivateSpaceflight
#ReusableLaunchVehicle
#RocketEngine
#RocketScience
#SatelliteImprovement
#SatelliteInternetAccess
#SBSP (Space-based Solar Power)
#SmallSat
#SpaceAgency
#SpaceCommunication
#SpaceCompany
#SpaceCraft
#SpaceColonization
#SpacecraftComparison
#SpacecraftPropulsion
#SpaceDebris
#SpaceEnergy
#SpaceEvent
#SpaceFood
#SpaceForce
#SpaceHabitat
#SpaceHotel
#SpaceIndustry
#SpaceInfrastructure
#SpaceLogistics
#SpaceMaintenance
#SpaceMining
#SpaceNavigation
#SpacePhotography
#SpacePlants
#SpacePolitics
#SpacePort
#SpaceRegulation
#SpaceRobot
#SpaceScience
#SpaceSciFi
#SpaceStation
#SpaceSuit
#SpaceTelescope
#SpaceTourism
#SpaceWelding
#TimeToOrbit
#hashtags #asteroidMining #asteroidthreat #celestialbodylanding #dsoc #halleffectthruster #humanspaceflight #humanspaceflightbasics #humanspaceflighthealth #humanspaceflightsecurity #isru #launchcost #lunar3dprinting #moonmining #privatespaceflight #reusablelaunchvehicle #rocketengine #rocketscience #satelliteimprovement #satelliteinternetaccess #sbsp #smallsat #spaceagency #spacecommunication #spacecompany #spacecraft #spacecolonization #spacecraftcomparison #spacecraftpropulsion #spacedebris #spaceenergy #spaceevent #spacefood #spaceforce #spacehabitat #spacehotel #spaceindustry #spaceinfrastructure #spacelogistics #spacemaintenance #spacemining #spacenavigation #spacephotography #spaceplants #spacepolitics #spaceport #spaceregulation #spacerobot #spacescience #spacescifi #spacestation #spacesuit #spacetelescope #spacetourism #spacewelding #timetoorbit
Spaceflight 🚀 · @spaceflight
1167 followers · 758 posts · Server techhub.socialThe #Psyche #spacecraft travels using #SolarElectric (low-thrust) #propulsion. Solar ☀️ electric propulsion uses electricity from solar arrays to create electromagnetic fields to accelerate and expel charged atoms ⚛️ (#ions) of #xenon to create a very low thrust with a very efficient use of #propellant ⛽. This will be the first use of a #HallEffectThruster beyond lunar orbit.
#Launch period 📆 October 5-25, 2023 https://psyche.asu.edu/mission/launch
Propulsion : https://en.wikipedia.org/wiki/Psyche_(spacecraft)#Propulsion
#Forbes "Psyche could contain a core of #iron, #nickel and #gold worth $10,000 #quadrillion" https://www.forbes.com/sites/jamiecartereurope/2022/10/29/nasa-will-launch-psyche-mission-to-explore-asteroid-worth-more-than-the-global-economy
#NYT #AsteroidMining : "let’s say Psyche ☄️were pulverized and carried to #Earth 🌎. For precisely that reason, #prices of iron and nickel would drop close to zero. I interviewed Matthew Gialich, the chief executive officer and a co-founder of #AstroForge. They’re going for #platinum, which sells for a little under $1,000 an ounce, and related #metals, such as #palladium." https://www.nytimes.com/2023/02/08/opinion/psyche-asteroid-nasa-mining.html
#psyche #spacecraft #solarelectric #propulsion #ions #xenon #propellant #halleffectthruster #launch #forbes #iron #nickel #gold #quadrillion #nyt #asteroidMining #earth #prices #astroforge #platinum #metals #palladium
Spaceflight 🚀 · @spaceflight
1167 followers · 758 posts · Server techhub.socialThe #Psyche #spacecraft travels using #SolarElectric (low-thrust) #propulsion. Solar ☀️ electric propulsion uses electricity from solar arrays to create electromagnetic fields to accelerate and expel charged atoms ⚛️ (#ions) of #xenon to create a very low thrust with a very efficient use of #propellant ⛽. This will be the first use of a #HallEffectThruster beyond lunar orbit.
#Launch period 📆 October 5-25, 2023 https://psyche.asu.edu/mission/launch
Propulsion : https://en.wikipedia.org/wiki/Psyche_(spacecraft)#Propulsion
#AsteroidMining : "let’s say Psyche ☄️were pulverized and carried to #Earth 🌎. Human beings would be richer in one sense, because they would have all the #iron and #nickel they would ever need. But for precisely that reason, #prices of iron and nickel would drop close to zero. I interviewed Matthew Gialich, the chief executive officer and a co-founder of #AstroForge. They’re going for #platinum, which sells for a little under $1,000 an ounce, and related #metals, such as #palladium." https://www.nytimes.com/2023/02/08/opinion/psyche-asteroid-nasa-mining.html
#psyche #spacecraft #solarelectric #propulsion #ions #xenon #propellant #halleffectthruster #launch #asteroidMining #earth #iron #nickel #prices #astroforge #platinum #metals #palladium
Spaceflight 🚀 · @spaceflight
1137 followers · 707 posts · Server techhub.social#Avionics 📆 February 28, 2023 The #FCC recently gave #SpaceX partial approval for the second generation of the constellation, approving 7,500 #satellites 🛰️. The #Argon #HallEffectThruster offer 170 mN of thrust, which SpaceX said is 2.4 times the thrust 💪 and 1.5 times the specific impulse of thrusters on first generation #Starlink satellites.There are more than 3,683 satellites in operation in the constellation. https://www.aviationtoday.com/2023/02/28/spacex-shares-details-higher-bandwidth-v2-mini-starlink-satellites
#avionics #fcc #SpaceX #satellites #argon #halleffectthruster #starlink
Spaceflight 🚀 · @spaceflight
1134 followers · 686 posts · Server techhub.social
📆 February 26, 2023 #Argon-fueled #HallEffectThruster for #Starlink V2 #satellites 🛰️ : Relative to #krypton, the argon required to fuel Starlink V2 satellites will be practically free. 99.999%-pure argon can be purchased in low volumes for just $5 to $17 per kilogram. Fueling ⛽ its next constellation of almost 30,000 V2 satellites could cost #SpaceX less than fueling 4000 V1 satellites. https://www.teslarati.com/spacex-unveils-next-gen-starlink-v2-mini-satellites-ahead-of-monday-launch
#argon #halleffectthruster #starlink #satellites #krypton #SpaceX