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the transmission of information between the earth and spacecraft between two or more points on the earth via spacecraft or using artificial means located in space a belt of needles a cloud of ionized particles and so on and between two or more spacecraft wiley j larson james r wertz 1999 space mission analysis and design 3rd ed microcosm p 409 isbn 978 1 881883 10 4 micrometeoroid and orbital debris mmod protection pdf nasa archived from the original pdf on 29 october 2009 retrieved 10 may 2013 hall nancy 5 may 2015 welcome to the beginner s guide to propulsion nasa archived from the original on 8 november 2023 retrieved 7 january 2023 zhang bin october 2014 a verification framework with application to a propulsion system expert systems with applications 41 13 5669 5679 doi 10 1016 j eswa 2014 03 017 chen yang april 2017 dynamic modeling and simulation of an integral bipropellant propulsion double valve combined test system pdf acta astronautica 133 346 374 bibcode 2017acaau 133 346c doi 10 1016 j actaastro 2016 10 010 archived from the original on 8 november 2023 retrieved 7 january 2023 patterson michael august 2017 ion propulsion nasa archived from the original on 31 december 2018 retrieved 7 january 2023 wiley j larson james r wertz 1999 space mission analysis and design 3rd ed microcosm pp 460 isbn 978 1 881883 10 4 davis phillips basics of space flight nasa archived from the original on 2 june 2019 retrieved 7 january 2023 schilling k flury w 11 april 1989 autonomy and on board mission management aspects for the cassini titan probe athena mars exploration rovers archived from the original pdf on 5 may 2013 retrieved 10 may 2013 current space missions exhibit a rapid growth in the requirements for on board autonomy this is the result of increases in mission complexity intensity of mission activity and mission duration in addition for interplanetary spacecraft the operations are characterized by complicated ground control access due to the large distances and the relevant solar system environment to handle these problemsn the spacecraft design has to include some form of autonomous control capability frequently asked questions athena for kids q is the rover controlled by itself or controlled by scientists on earth pdf athena mars exploration rovers 2005 archived from the original pdf on 29 october 2009 retrieved 10 may 2013 communication with earth is only twice per sol martian day so the rover is on its own autonomous for much of its journey across the martian landscape scientists send commands to the rover in a morning uplink and gather data in an afternoon downlink during an uplink the rover is told where to go but not exactly how to get there instead the command contains the coordinates of waypoints toward a desired destination the rover must navigate from waypoint to waypoint without human help the rover has to use its brain and its eyes for these instances the brain of each rover is the onboard computer software that tells the rover how to navigate based on what the hazcams hazard avoidance cameras see it is programmed with a given set of responses to a given set of circumstances this is called autonomy and hazard avoidance what is a space probe nasa gov archived from the original on 30 august 2021 retrieved 26 february 2023 space probes education nationalgeographic org archived from the original on 26 february 2023 retrieved 26 february 2023 ross s d 2006 the interplanetary transport network pdf american scientist 94 3 230 237 doi 10 1511 2006 59 994 archived pdf from the original on 20 october 2013 retrieved 27 june 2013 donaldson abbey a 12 february 2024 nasa to provide coverage of progress 87 launch space station docking nasa post hannah 16 september 2014 nasa selects spacex to be part of america s human spaceflight program spacex archived from the original on 15 march 2019 retrieved 3 march 2019 berger eric 9 june 2017 so spacex is having quite a year ars technica archived from the original on 9 june 2017 retrieved 9 june 2017 foust jeff 30 january 2024 falcon 9 launches cygnus cargo spacecraft to space station space news atv europe s space transporter for the iss www dlr de retrieved 6 january 2026 长征七号遥三火箭 天舟二号货运飞船 longmarch 7 y3 tianzhou 2 spaceflightfans cn in chinese 21 april 2021 archived from the original on 11 june 2021 retrieved 25 may 2021 jones andrew 13 april 2021 china preparing tianzhou 2 cargo mission to follow upcoming space station launch spacenews retrieved 24 april 2021 china rolls out rocket for tianzhou 3 cargo mission ahead of monday launch photos space com 17 september 2021 berger eric 25 september 2025 sierra s dream chaser is starting to resemble a nightmare ars technica retrieved 26 september 2025 european space agency launches competition for cargo service vehicle science business sciencebusiness net retrieved 6 january 2026 china space station growth new supply ships retrieved 6 january 2026 jones andrew 22 december 2025 meet qingzhou china s next gen cargo craft for its tiangong space station video space retrieved 6 january 2026 williams matthew 18 november 2024 china s proposed cargo shuttle the haolong has entered development universe today retrieved 6 january 2026 v t e spaceflight general astrodynamics history timeline space race records accidents and incidents space launch space policy australia china european space agency european union india japan north korea south korea russia soviet union united states space law outer space treaty rescue agreement space liability convention registration convention moon treaty space warfare space command space force militarisation of space private spaceflight billionaire space race applications astronomy earth observation archaeology imagery and mapping reconnaissance weather and environment monitoring communications satellite internet radio telephone television satellite navigation outline of artificial satellites commercial use of space space launch market competition space architecture space 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destinations sub orbital orbital geocentric geosynchronous interplanetary interstellar intergalactic space launch direct ascent escape velocity expendable and reusable launch systems launch pad non rocket spacelaunch spaceport ground segment flight controller ground station pass mission control center category portal v t e cargo spacecraft earth orbit active cygnus cargo dragon 2 progress tianzhou htv x qingzhou in development dream chaser haolong nyx vortex retired atv dragon 1 tks htv kounotori proposed tgk pg soyuz gvk argo rfa argo mtks cancelled andrews cargo module arctus jupiter kistler k 1 s 550 omv lunar orbit in development dragon xl lunar surface in development argonaut blue moon starship programs nasa commercial orbital transportation services commercial resupply services gateway logistics services esa leo cargo return service comparison of space station cargo vehicles v t e mobile robots and uncrewed vehicles aerial unmanned aerial vehicle uav unmanned combat air vehicle ucav aerobot helicam list of unmanned aerial vehicle applications ornithopter ground walking humanoid android hexapod list other unmanned ground vehicle ugv automated guided vehicle agv self driving car automatic train operation ato list underwater unmanned underwater vehicle uuv autonomous underwater vehicle auv intervention auv i auv remotely operated underwater vehicle rouv underwater glider surface unmanned surface vehicle usv space uncrewed spacecraft list of probes list by program list of orbiters cargo spacecraft spaceflights to the iss space telescope list other domestic military rescue medical disability agricultural beam robotics microbotics nanorobotics robotics robot locomotion autonomous robot autonomous logistics radio controlled model remote control vehicle remote control animal categories radio control unmanned vehicles v t e spaceflight lists and timelines timeline of spaceflight general space exploration outline timeline spacecraft spaceflight records space race rocket and missile technology human spaceflight general crewed spacecraft timeline by program cargo spacecraft spaceflights 1961 1970 1971 1980 1981 1990 1991 2000 2001 2010 2011 2020 2021 present soviet russian vostok and voskhod soyuz mercury gemini apollo skylab shenzhou gaganyaan spacelab artemis civilian spaceflight orbital suborbital salyut expeditions spaceflights crewed uncrewed spacewalks visitors mir expeditions esa spaceflights crewed uncrewed spacewalks visitors iss expeditions esa visiting spaceflights crewed uncrewed spacewalks visitors deployed tiangong expeditions crewed spaceflights spacewalks shuttle crews missions rollbacks people astronauts by name by year of selection apollo gemini mercury african american arab asian chinese cosmonauts european ibero america indian muslim women space scientists space travelers by name by first flight by nationality billionaires timeline by nationality spaceflight related human fatalities eva 1965 1999 2000 2014 2015 2024 2025 present cumulative spacewalk records longest spacewalks spacewalkers solar system exploration timeline interplanetary voyages landings on other planets rovers artificial objects objects at lagrange points probes active future orbiters leaving the solar system lunar probes missions to the moon timeline of satellites sample return mission mars earth orbiting satellites communications satellite firsts cubesats pocketqube earth observation satellites timeline of first earth observation satellites geosynchronous orbit goes gps kosmos nro sentinel tdrs usa by country asia india philippines turkey cee albania bulgaria czechia poland slovakia slovenia ukraine americas brazil vehicles orbital launch systems comparison sounding rocket list spacecraft uncrewed crewed heaviest upper stages sounding rocket small lift launch vehicle medium lift launch vehicle heavy lift launch vehicle super heavy lift launch vehicle launches by rocket type ariane antares atlas atlas lv3b atlas lv3c black brant delta dm 19 delta 1 delta ii delta iii delta iv heavy delta iv medium delta iv electron firefly alpha falcon 9 and heavy 2010 2019 2020 2022 2023 gslv h ii kosmos long march minotaur new glenn proton pslv r 7 including semyorka molniya vostok voskhod and soyuz scout sls starship thor and delta thor agena thor dm 18 able thor dm 18 agena a thor dm 18 thor dm 21 agena b titan tsyklon v 2 tests vega vulcan zenit launches by spaceport satish dhawan agencies companies and facilities communications satellite companies comparison private spaceflight companies rocket launch sites space agencies spacecraft manufacturers other mission lists and timelines first orbital launches by country first satellites by country esa missions nasa missions constellation missions timeline of first images of earth from space timeline of longest spaceflights timeline of private spaceflight v t e nasa policy and history history creation naca 1915 national aeronautics and space act 1958 space task group 1958 paine 1986 rogers 1986 ride 1987 space exploration initiative 1989 augustine 1990 u s national space policy 1996 cfusai 2002 caib 2003 vision for space exploration 2004 aldridge 2004 augustine 2009 general space race administrator and deputy administrator chief scientist astronaut corps ranks and positions chief budget nasa research spinoff technologies nasa nasa tv nasa social launch services program mercury control center manned space flight network kennedy space center vehicle assembly building launch complex 39 39a 39b launch complex 48 launch control center operations and checkout building johnson space center mission control lunar sample laboratory science mission directorate human spaceflight programs past x 15 suborbital mercury gemini apollo skylab apollo soyuz with the soviet space program space shuttle shuttle mir with roscosmos constellation current international space station commercial orbital transportation services commercial crew orion artemis robotic programs past hitchhiker mariner mariner mark ii mesur mars surveyor 98 new millennium lunar orbiter pioneer planetary observer ranger surveyor viking project prometheus mars exploration mars exploration rover current living with a star lunar precursor robotic program earth observing system great observatories program explorers voyager discovery new frontiers solar terrestrial probes commercial lunar payload services simplex individual featured missions human and robotic past apollo 11 artemis ii cobe mercury 3 mercury atlas 6 magellan pioneer 10 pioneer 11 galileo timeline galex grail wmap space shuttle spitzer space telescope sojourner rover spirit rover ladee messenger aquarius cassini dawn kepler space telescope opportunity rover timeline observed rhessi maven insight ingenuity helicopter flights currently operating mars reconnaissance orbiter 2001 mars odyssey new horizons international space station hubble space telescope chandra x ray observatory swift observatory themis curiosity rover timeline lunar reconnaissance orbiter sdo juno mars science laboratory timeline nustar voyager 1 voyager 2 mms osiris apex tess mars 2020 perseverance rover timeline james webb space telescope timeline pace europa clipper nisar nancy grace roman space telescope future davinci veritas communications and navigation near earth network space network deep space network goldstone madrid canberra space flight operations facility deep space atomic clock nasa lists astronauts by name by year gemini astronauts apollo astronauts space shuttle crews nasa aircraft nasa missions uncrewed missions apollo missions space shuttle missions united states rockets nasa cancellations nasa cameras on spacecraft nasa images and artwork earthrise the blue marble family portrait pale blue dot pillars of creation mystic mountain solar system family portrait the day the earth smiled hello world earthset fallen astronaut deep fields lunar plaques pioneer plaques voyager golden record apollo 11 goodwill messages nasa insignia gemini and apollo medallions missio...