Editing Light pollution (section)

===From satellites===
{{main|Satellite flare}}
[[File:Eso2004a.jpg|thumb|upright|Visibility of satellites during twilight marked green and red. 30° above the horizon is where most astronomical observations take place. In Earth's shadow, represented by the darker area on the left, satellites become practically invisible.]]
Also contributing to light pollution are [[artificial satellites]]. With increasing numbers of [[satellite constellation]]s such as [[OneWeb#Concerns|OneWeb]] and [[Starlink]], members of the astronomical community, notably the [[International Astronomical Union|IAU]], fear that light pollution will increase significantly, one of many concerns reported in the media regarding satellite overcrowding.<ref name="iau">{{cite web |title=IAU's statement on satellite constellations |url=https://www.iau.org/news/announcements/detail/ann19035/ |website=International Astronomical Union |access-date=3 June 2019 |archive-date=27 May 2020 |archive-url=https://web.archive.org/web/20200527073625/https://www.iau.org/news/announcements/detail/ann19035/ |url-status=live }}</ref><ref>{{cite web|url=http://www.astronomy.com/news/2019/06/light-pollution-from-satellites-will-get-worse-but-how-much|title=Light pollution from satellites will get worse. But how much?|date=2019-06-14|access-date=2019-11-07|website=astronomy.com|archive-date=2021-04-28|archive-url=https://web.archive.org/web/20210428172415/https://astronomy.com/news/2019/06/light-pollution-from-satellites-will-get-worse-but-how-much|url-status=live}}</ref><ref>{{cite web|url=https://www.theverge.com/2019/5/29/18642577/spacex-starlink-satellite-constellation-astronomy-light-pollution|date=2019-05-29|title=SpaceX Starlink satellite constellation astronomy light pollution|archive-date=2020-11-29|archive-url=https://web.archive.org/web/20201129020343/https://www.theverge.com/2019/5/29/18642577/spacex-starlink-satellite-constellation-astronomy-light-pollution}}</ref> Public discourse surrounding the continuing deployment of satellite constellations includes multiple petitions by astronomers and citizen scientists,<ref>{{cite web|url=https://astronomersappeal.wordpress.com/|title=Appeal by Astronomers|first=Stefano|last=Gallozzi|date=2020-01-09|archive-url=https://web.archive.org/web/20201129001704/https://astronomersappeal.wordpress.com/2020/01/09/astronomers-appeal/|archive-date=2020-11-29}}</ref><ref>{{cite web|url=https://www.astro.princeton.edu/~gbakos/satellites/index.html|title=Light pollution from Satellites|archive-url=https://web.archive.org/web/20201129023557/https://www.astro.princeton.edu/~gbakos/satellites/index.html|archive-date=2020-11-29|first=Gaspar|last=Bakos}}</ref> and has raised questions about which regulatory bodies hold jurisdiction over human actions that obscure starlight.<ref>{{cite web|title=SpaceX's Starlink satellites are about to ruin stargazing for everyone|url=https://theconversation.com/spacexs-starlink-satellites-are-about-to-ruin-stargazing-for-everyone-149516|date=2020-11-17|first=Samantha|last=Lawler|archive-url=https://web.archive.org/web/20201129000433/https://theconversation.com/spacexs-starlink-satellites-are-about-to-ruin-stargazing-for-everyone-149516|archive-date=2020-11-29}}</ref><ref>{{cite web|url=https://www.rcinet.ca/en/2020/11/18/astronomers-vs-tech-giants-in-space/|title=Astronomers vs tech giants in space|first=Marc|last=Montgomery|date=2020-11-18|archive-url=https://web.archive.org/web/20201129000829/https://www.rcinet.ca/en/2020/11/18/astronomers-vs-tech-giants-in-space/|archive-date=2020-11-29}}</ref><ref>{{cite press release|url=https://www.darksky.org/why-do-mega-constellations-matter-to-the-dark-sky-community/|title=Why do mega constellations matter to the Dark Sky community|date=2019-12-27|archive-url=https://web.archive.org/web/20201117232230/https://www.darksky.org/why-do-mega-constellations-matter-to-the-dark-sky-community/#webpage|archive-date=2020-11-17}}</ref><ref>{{cite web |url=https://aas.org/satellite-constellations-1-workshop-report|title=Satellite Constellations 1 Workshop Report |website=American Astronomical Society |date=2020-08-25|archive-url=https://web.archive.org/web/20201129021515/https://aas.org/satellite-constellations-1-workshop-report|archive-date=2020-11-29}}</ref><ref>{{cite press release|url=https://noirlab.edu/public/announcements/ann20011/|date=2020-08-21|title=Media advisory: Press Conference to Unveil Conclusions from Satellite Constellations 1 (SATCON1) Workshop|archive-url=https://web.archive.org/web/20201129021144/https://noirlab.edu/public/announcements/ann20011/|archive-date=2020-11-29}}</ref><ref>{{cite arXiv|eprint=2001.10952|title=Concerns about ground based astronomical observations: A step to Safeguard the Astronomical Sky|first1=Stefano|last1=Gallozzi|first2=Marco|last2=Scardia|first3=Michele|last3=Maris|date=2020-02-04|class=astro-ph.IM}}</ref>