Editing Earth Observing System (section)

{{short description|NASA program involving satellites}}
{{Use dmy dates|date=June 2019}}
{{Infobox space program
| name            = Earth Observing System
| image           = 
| image_size      = 
| upright         = 
| alt             = 
| caption         = 
| country         = United States
| organization    = [[NASA]]
| purpose         = Observe Earth to improve understanding of climate, weather, land and atmosphere
| status          = Active
| cost            = $33 Billion [[USD]]
| duration        = 
| firstflight     = 
| firstcrewed     = 
| lastflight      = 
| successes       = 
| failures        = 
| partialfailures = 
| launchsite      = 
| uncrewvehicle   = All
| crewvehicle     = 
| capacity        = 
| launcher        = 
}}
The '''Earth Observing System''' ('''EOS''') is a program of [[NASA]] comprising a series of [[artificial satellite]] missions and scientific instruments in [[Earth]] [[orbit]] designed for long-term global observations of the land surface, [[biosphere]], [[earth's atmosphere|atmosphere]], and [[ocean]]s. Since the early 1970s, NASA has been developing its Earth Observing System, launching a series of [[Landsat program|Landsat satellites]] in the decade. Some of the first included [[Passive microwave sensor|passive microwave imaging]] in 1972 through the [[Nimbus 5]] satellite.<ref name=":0">{{Cite web |last=Platnick |first=Steven |date=March 22, 2022 |title=Historical Missions |url=https://eospso.nasa.gov/mission-category/2 |website=NASA's Earth Observing System}}</ref> Following the launch of various satellite missions, the conception of the program began in the late 1980s and expanded rapidly through the 1990s.<ref name=":3">{{cite web |last=Platnick |first=Steven |date=5 April 2022 |title=Earth Observing System |url=https://eospso.nasa.gov/mission-category/3 |website=NASA's Earth Observing System}}</ref> Since the inception of the program, it has continued to develop, including; land, sea, [[radiation]] and atmosphere.<ref name=":0" /> Collected in a system known as [[EOSDIS]], NASA uses this data in order to study the progression and changes in the biosphere of Earth. The main focus of this [[data collection]] surrounds climatic science. The program is the centrepiece of NASA's [[Earth Science Enterprise]].