Why Haut Rhin’s Sky So Often Looks Strange

Introduction

Haut-Rhin’s UFO reports make more sense when they are read against the department’s sky: a busy border airspace, a major international airport on French soil, former military activity near Colmar-Meyenheim, local aerodromes, hills, valley horizons, cloud layers and a modern mix of aircraft, drones, lanterns and bright planets. The point is not that every report is automatically explained. It is that many apparently strange lights in Haut-Rhin sit in places where ordinary sky traffic and optical effects can look unusually persuasive. Overview image for Sky Context GEIPAN, the CNES unit that collects, analyses and archives French reports of unidentified aerospace phenomena, treats this kind of context as central: witness statements are tested against aviation, weather, astronomy and other data rather than assumed to be extraordinary at first sight.[CNES]cnes.frGEIPAN | CNESGEIPAN | CNES In Haut-Rhin, that approach has repeatedly turned “UFO” reports into aircraft, helicopters, drones, lanterns, meteors, balloons, lasers, the Moon or Venus, while leaving a smaller residue of unresolved cases.[Geipan]cnes-geipan.frGeipan Recherche de cas | GEIPANGeipan Recherche de cas | GEIPAN

Basel-Mulhouse makes Haut-Rhin a working sky, not an empty one

The most important aviation fact about Haut-Rhin is EuroAirport Basel-Mulhouse-Freiburg. It sits at Saint-Louis, in France, but serves the French, Swiss and German sides of the border region. That means local observers may be looking not just at “French” traffic but at cross-border arrivals, departures, cargo flights, maintenance movements, general aviation and aircraft positioning in the wider Basel-Mulhouse air traffic environment.

The scale is large enough to matter for UFO interpretation. EuroAirport reported 9.6 million passengers in 2025, and its 2024 report described passenger and cargo volumes as having recovered close to 2019 levels.[euroairport.com]euroairport.comPublications | Euro AirportPublications | Euro Airport Even without counting every overflight, that makes the southern part of Haut-Rhin a place where moving lights, approach paths, landing lights, low aircraft and changing aircraft attitudes are part of the normal night sky.

This becomes especially relevant because aircraft do not always look like “aircraft” to a witness on the ground. A plane flying nearly towards the observer can appear to hover. Landing lights can seem much brighter than navigation lights. A turn can make a white point flare, vanish or change colour. A descending aircraft can look stationary against a dark background, then suddenly “accelerate” when its angle changes. These are not excuses invented after the fact; they are routine interpretive problems in aviation and skywatching.

The Rixheim case of 26 July 2009 shows how airport context enters a serious investigation. GEIPAN describes a witness on his terrace watching a white light cross part of the sky, initially thinking it resembled a satellite, before losing and reacquiring it as its behaviour seemed to change.[Geipan]cnes-geipan.frOpen source on cnes-geipan.fr. Follow-up material linked to the GEIPAN file shows that Basel-Mulhouse air traffic services were asked for radar traces and weather information; the response included CAVOK aviation weather, light winds and a multiradar replay that found no corresponding track over Rixheim in the relevant window.[UFO Transparency]ufotransparency.comintl fr geipan rixheim 2009 trace radar r1intl fr geipan rixheim 2009 trace radar r1

That does not prove the witness saw nothing. It does show the difference between a vivid sky report and a confirmed aviation event. In a department like Haut-Rhin, the airport is both a source of possible explanations and a source of checks: air traffic control, radar review and aviation weather can strengthen a case, weaken it, or leave it unresolved for lack of matching data. Sky Context illustration 1

Local aerodromes add another layer of low-level ambiguity

Basel-Mulhouse is not the only aviation factor. Haut-Rhin also has smaller airfields and aerodromes whose activity can produce lower, slower or more localised lights than commercial traffic. Habsheim, near Mulhouse and Rixheim, is a good example. Its aviation chart places it close to the built-up and road landscape south-east of Mulhouse, and the same published material warns pilots that, with southerly winds, they must pay particular attention to aircraft on the runway 15 instrument approach into Basel-Mulhouse. It also notes two captive balloons operating day and night up to 600 feet above field level, with night-marked cables.[ACHR]achr.asso.frACHRAIP for FRANCEACHRAIP for FRANCE

For a UFO report, those details matter. A witness does not need to know the name of an approach path, reporting point or balloon notice to be affected by it. What matters is what the sky looks like from the road, terrace or garden. A small aircraft near an aerodrome can look slow or strangely angled. A helicopter can appear to stop. A captive balloon or cable marking may be a fixed reference point that seems odd if seen briefly. A lighted object near the horizon can be difficult to place: is it over the town, over the airfield, or much farther away on an airport approach?

The former Colmar-Meyenheim air base shaped the older sky record

Northern and central Haut-Rhin have their own aviation layer: the former Colmar-Meyenheim air base. The airfield was built in the 1950s as a NATO-standard base and became associated with French fighter units, including all-weather fighter activity; later accounts of the base’s history describe its transition away from air force use, with the air base banner transferred in 2010 and the site becoming an army barracks.[Forgotten Airfields]forgottenairfields.comairfield colmar meyenheim 1088airfield colmar meyenheim 1088

This matters most for older reports and for local memory. A department with an active fighter base has more opportunities for people to see fast jets, training activity, navigation lights, unusual noise, afterburner impressions, formation flights or military aircraft at dusk. It also has more scope for ambiguous sightings in which witnesses remember that “the military might have been involved” but lack exact flight logs, radar data or time-synchronised records.

The Huningue case of 26 May 1980 is not a Colmar-Meyenheim case, but it illustrates why aviation records can be tantalising and inconclusive at the same time. GEIPAN’s summary says two walkers saw a metallic, dome-like object in a clear sky; one witness was a flight mechanic officer, which gives the testimony more weight than a casual anonymous report. During roughly six minutes of observation, no sound or condensation was noticed. Basel-Mulhouse recorded a radar echo, but GEIPAN says it was mixed in with private and general aviation traffic and was therefore of little use; no additional witness or information was collected from France or the nearby German border area, and the case remains unexplained.[Geipan]geipan.frOpen source on geipan.fr.

That is a useful cautionary example. Airport and airbase context can explain many sightings, but it can also show why some remain open: not because the evidence confirms an extraordinary craft, but because the available aviation data are too noisy, incomplete or weakly correlated to close the case.

Hills, cloud and horizons can make ordinary lights behave oddly

Haut-Rhin is visually deceptive because it combines the Rhine plain with the Vosges to the west, the Black Forest horizon to the east and the Basel border zone to the south. Lights may be seen across long distances, partly masked by hills, cloud, haze or valley layers. A distant aircraft, planet, lantern or ground-based light can therefore seem to rise from a ridge, hang above a town, disappear into cloud, or move silently over a valley.

This is not just a UFO-specific issue. Aviation safety literature treats visual illusion as a real problem even for trained pilots: Skybrary defines visual illusions as cases where the eye is deceived into making a faulty assessment of aircraft position or orientation relative to the external environment.[SKYbrary]skybrary.aeroOpen source on skybrary.aero. NASA’s Aviation Safety Reporting System has noted that Venus is a classic source of aviation confusion: the parallax effect can make a distant fixed object appear close or moving, and even pilots and tower controllers have mistaken Venus for aircraft-related lights.[asrs.arc.nasa.gov]asrs.arc.nasa.govCALLBAC K 246CALLBAC K 246

For an observer in Haut-Rhin, three mechanisms are especially relevant:[haut-rhin.gouv.fr]haut-rhin.gouv.frLes services de l'État dans le Haut-Rhin DronesActivités aériennes - Professions et activités réglementées - Démarches - Les services de l'État dans le Haut-Rhin…

Low horizon viewing. Bright planets, aircraft landing lights and distant town lights are most misleading when they sit low above a ridge or treeline. Without reliable distance cues, the brain may read brightness as nearness.

Cloud masking. A light passing behind broken cloud may seem to blink, pause or jump. If the cloud is itself moving, the apparent motion can be assigned to the wrong object.

Valley perspective. Looking along the Rhine plain or towards the Vosges can compress distance. A light many kilometres away may seem to be above a nearby village, road or field.

These mechanisms do not debunk a report by themselves. They provide a checklist for reading it. A strong Haut-Rhin case should ideally have a precise time, direction, elevation, duration, weather, witness position, possible aircraft tracks, astronomical checks and any supporting photos or videos. Without those anchors, the local landscape makes confident interpretation difficult. Sky Context illustration 2

The recurring explanations are local, not generic

The clearest lesson from the GEIPAN Haut-Rhin list is that the explanations are not random. They cluster around a few repeat categories that fit the department’s sky and social life.

Aircraft and helicopters are the most obvious. GEIPAN records include Haut-Rhin cases attributed to airliners, aircraft, helicopters and more general aircraft activity, including sightings around roads and towns where the observer was not necessarily thinking in aviation terms.[Geipan]cnes-geipan.frGeipan Recherche de cas | GEIPANGeipan Recherche de cas | GEIPAN These cases matter because aircraft can be misread even in good faith, especially at night, at low elevation, or when the witness sees only lights rather than the aircraft body.

Lanterns are another recurring source. GEIPAN lists Haut-Rhin cases explained as lanterns at Rouffach, Rixheim, Luttenbach-près-Munster, Ammerschwihr, Soppe-le-Bas, Colmar, Mulhouse and other entries.[Geipan]geipan.frOpen source on geipan.fr. Their UFO value is familiar: they are silent, glowing, wind-driven and often seen in small groups. In the Vosges and Rhine plain, where wind direction and terrain can carry lights over villages or dark slopes, they can look more purposeful than they are.

Astronomical and natural explanations also appear. GEIPAN lists Venus at Fréland, the Moon at Steinbach, a meteor at Carspach and a fireball at Staffelfelden.[Geipan]geipan.frOpen source on geipan.fr. These are not embarrassing mistakes. They are exactly the kind of sky events that become puzzling when seen briefly, low on the horizon, through cloud, from a moving car, or without an astronomical reference.

What makes an airport-linked report stronger or weaker?

In Haut-Rhin, a report becomes stronger when it survives the obvious airport and sky-condition checks. The strongest version would include a precise time, viewing direction, angular height, duration, weather, photos or video, multiple independent witnesses from different positions, and a comparison with aviation data from Basel-Mulhouse, local aerodromes and nearby military or rescue activity. GEIPAN’s national process exists partly to make those comparisons: it collects accounts from witnesses and authorities, then analyses them with partners including civil aviation, the gendarmerie, the Air and Space Force and weather expertise.[CNES]cnes.frGEIPAN | CNESGEIPAN | CNES

A report becomes weaker when it has only a single witness, a vague direction, no timing precision, no angular estimate, no weather context and no way to distinguish a nearby object from a distant one. That does not mean the witness is unreliable. It means the case is underdetermined: the department’s sky supplies too many plausible alternatives.

Rixheim 2009 sits in the middle. It has a reasonably specific witness account and was checked against airport radar and weather, which gives it more substance than a casual story. But the lack of a matching multiradar trace, the short duration and the single-witness nature of the observation prevent it from becoming a strong aviation-correlated case.[Geipan]cnes-geipan.frOpen source on cnes-geipan.fr. Huningue 1980 is stronger in witness quality and duration, but still limited by an unusable radar echo and the absence of corroborating witnesses in a densely connected border area.[Geipan]geipan.frOpen source on geipan.fr.

That is the balanced reading of Haut-Rhin’s sky context. The department is not a blank canvas on which UFO stories appear. It is a layered airspace where airports, aerodromes, former military activity, weather, terrain and modern drones constantly create opportunities for honest misidentification — and where the few unresolved cases are most interesting precisely because they remain unresolved after, not before, those ordinary checks are considered. Sky Context illustration 3 <section class="further-reading-section" data-page-toc-exclude aria-labelledby="further-reading-title"><div class="fr-section-shell"><div class="fr-section-header"><div class="fr-section-heading"><p class="fr-section-kicker">Amazon book picks</p><h3 class="fr-heading" id="further-reading-title">Further Reading</h3></div><p class="fr-intro">Books and field guides related to Why Haut Rhin's Sky So Often Looks Strange. Use these as the next step if you want deeper reading beyond the article.</p></div><div class="fr-books-grid"><article class="fr-book-card">Book<div class="fr-book-info"><h4 class="fr-book-title">The UFO Experience</h4><p class="fr-book-author">By Joseph Allen Hynek</p><p class="fr-book-desc">Strong focus on observational context and sighting analysis.</p><div class="fr-book-actions"> See on Amazon</div></div></article><article class="fr-book-card">Book<div class="fr-book-info"><h4 class="fr-book-title">UFOs</h4><p class="fr-book-author">By Leslie Kean</p><p class="fr-book-desc">Provides aviation-oriented UFO case studies.</p><div class="fr-book-actions"> See on Amazon</div></div></article><article class="fr-book-card">Book<div class="fr-book-info"><h4 class="fr-book-title">The Believing Brain</h4><p class="fr-book-author">By Michael Shermer</p><p class="fr-book-desc">Helps explain why ordinary lights can appear extraordinary.</p><div class="fr-book-actions"> See on Amazon</div></div></article><article class="fr-book-card">Book<div class="fr-book-info"><h4 class="fr-book-title">The Demon-haunted World</h4><p class="fr-book-author">By Carl Sagan</p><p class="fr-book-desc">Addresses misidentification of natural and human-made phenomena.</p><div class="fr-book-actions"> See on Amazon</div></div></article></div><div class="fr-section-footer"><div class="fr-browse-links" aria-label="Browse more on Amazon">Browse more on Amazon:The UFO Experience UFOs The Believing Brain</div><p class="fr-disclosure">As an Amazon Associate I earn from qualifying purchases.</p></div></div></section><section class="further-reading-section" data-page-toc-exclude data-ebay-localized-links data-ebay-visual-market="EBAY_GB" aria-labelledby="merchant-block-title"><div class="fr-section-shell"><div class="fr-section-header"><div class="fr-section-heading"><p class="fr-section-kicker">eBay marketplace picks</p><h3 class="fr-heading" id="merchant-block-title">Marketplace Samples</h3></div><p class="fr-intro">Live-tested eBay searches with available results related to this page.</p><div class="fr-ebay-market-toolbar">Shop location<div class="fr-ebay-market-picker">UsingUSA<div class="fr-ebay-market-menu" data-ebay-market-menu role="listbox" hidden></div></div></div></div><div class="fr-ebay-market-panel" data-ebay-market-panel="EBAY_GB" data-ebay-market-default="1"><div class="fr-books-grid"><article class="fr-book-card"><div class="fr-book-info"><p class="fr-book-kicker">Example eBay listing</p><h4 class="fr-book-title">Fat Quarter Night Sky Print Cotton Quilting Fabric Fresh Water Designs</h4>SearcheBay.co.uk: night sky print<div class="fr-book-actions"> Browse similar oneBay.co.uk</div></div></article><article class="fr-book-card"><div class="fr-book-info"><p class="fr-book-kicker">Example eBay listing</p><h4 class="fr-book-title">STARRY NIGHT SKY AT A NATIONAL PARK FRAMED CANVAS WALL ART PICTURE PRINT</h4>SearcheBay.co.uk: night sky print<div class="fr-book-actions"> Browse similar oneBay.co.uk</div></div></article><article class="fr-book-card"><div class="fr-book-info"><p class="fr-book-kicker">Example eBay listing</p><h4 class="fr-book-title">Milky Way Night Sky Framed Wall Art Poster Canvas Print Picture</h4>SearcheBay.co.uk: night sky print<div class="fr-book-actions"> Browse similar oneBay.co.uk</div></div></article><article class="fr-book-card"><div class="fr-book-info"><p class="fr-book-kicker">Example eBay listing</p><h4 class="fr-book-title">Personalised Star Map Sky Print - Constellations, night sky, the night we met</h4>SearcheBay.co.uk: night sky print<div class="fr-book-actions"> Browse similar oneBay.co.uk</div></div></article></div><div class="fr-section-footer"> Browse more oneBay.co.uk<p class="fr-disclosure">Example items shown for inspiration; availability and pricing can change. Branchoria may earn a commission if you purchase through outbound eBay links.</p></div></div></div></section>

Endnotes

1. Source: cnes.fr
Title: GEIPAN | CNES
Link:https://cnes.fr/en/projects/geipan

2. Source: euroairport.com
Title: Publications | Euro Airport
Link:https://www.euroairport.com/en/publications/annual-reports

3. Source: geipan.fr
Link:https://www.geipan.fr/fr/cas/1980-05-00775

4. Source: skybrary.aero
Link:https://skybrary.aero/articles/visual-illusions

5. Source: asrs.arc.nasa.gov
Title: CALLBAC K 246
Link:https://asrs.arc.nasa.gov/publications/callback/cb_246.htm

6. Source: geipan.fr
Link:https://www.geipan.fr/en/recherche/cas/tab?field_date_d_observation_value%5Bmax%5D=&field_date_d_observation_value%5Bmin%5D=&field_document_existe_ou_pas_value=All&field_is_new_value=All&field_is_revisited_value=All&field_latitude_value%5Bmax%5D=&field_latitude_value%5Bmin%5D=&field_longitude_value%5Bmin%5D=&field_type_de_cas_target_id=All&order=field_departement_textuel&page=56&sort=asc

7. Source: geipan.fr
Link:https://geipan.fr/en/recherche/cas/tab?field_agregation_index_value=c&field_document_existe_ou_pas_value=All&field_is_new_value=All&field_is_revisited_value=All&field_type_de_cas_target_id=All&order=field_departement_textuel&page=94&sort=desc

8. Source: euroairport.com
Link:https://www.euroairport.com/en

9. Source: euroairport.com
Link:https://www.euroairport.com/en/about-us

10. Source: euroairport.com
Link:https://www.euroairport.com/en/EuroAirport

11. Source: euroairport.com
Title: annual report 2024
Link:https://www.euroairport.com/en/publications/annual-reports/annual-report-2024

12. Source: euroairport.com
Title: a look back on 2024 passenger numbers are almost back to pre crisis levels
Link:https://www.euroairport.com/en/publications/news/a-look-back-on-2024-passenger-numbers-are-almost-back-to-pre-crisis-levels

13. Source: epaper.euroairport.com
Title: 2024 annual report euroairport
Link:https://www.epaper.euroairport.com/2024-annual-report-euroairport/70275494

14. Source: euroairport.com
Title: annual report 2024 a solid year and excellent prospects
Link:https://www.euroairport.com/en/publications/news/annual-report-2024-a-solid-year-and-excellent-prospects

15. Source: euroairport.com
Title: General Aviation and VFR flight
Link:https://www.euroairport.com/en/general-aviation-and-vfr-flight

16. Source: geipan.fr
Link:https://geipan.fr/fr/temoignage/3114

17. Source: basel.com
Link:https://www.basel.com/en/attractions/flughafen-basel-euroairport-98cc2db20e

18. Source: cnes-geipan.fr
Title: Geipan Recherche de cas | GEIPAN
Link:https://www.cnes-geipan.fr/en/recherche/cas/tab?field_agregation_index_value=&field_date_d_observation_value%5Bmax%5D=&field_date_d_observation_value%5Bmin%5D=&field_date_value=&field_departement_target_id%5B0%5D%5Btarget_id%5D=295&field_document_existe_ou_pas_value=All&field_is_new_value=All&field_is_revisited_value=All&field_latitude_value%5Bmax%5D=&field_latitude_value%5Bmin%5D=&field_longitude_value%5Bmax%5D=&field_longitude_value%5Bmin%5D=&field_phenomene_target_id=&field_type_de_cas_target_id=All&order=field_date&page=%2C4&select-category-export=nothing&sort=desc

19. Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/fr/cas/2009-07-02361

20. Source: ufotransparency.com
Title: intl fr geipan rixheim 2009 trace radar r1
Link:https://ufotransparency.com/files/intl-fr-geipan-rixheim-2009-trace-radar-r1

21. Source: ufotransparency.com
Title: intl fr geipan rixheim 2009 trace radar r
Link:https://ufotransparency.com/files/intl-fr-geipan-rixheim-2009-trace-radar-r

22. Source: achr.asso.fr
Title: ACHRAIP for FRANCE
Link:https://achr.asso.fr/documents/LFGB_VAC.pdf

23. Source: forgottenairfields.com
Title: airfield colmar meyenheim 1088
Link:https://www.forgottenairfields.com/airfield-colmar-meyenheim-1088.html

24. Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/en/recherche/cas/tab?field_agregation_index_value=&field_date_d_observation_value%5Bmax%5D=&field_date_d_observation_value%5Bmin%5D=&field_date_value=&field_departement_target_id%5B0%5D%5Btarget_id%5D=295&field_document_existe_ou_pas_value=All&field_is_new_value=All&field_is_revisited_value=All&field_latitude_value%5Bmax%5D=&field_latitude_value%5Bmin%5D=&field_longitude_value%5Bmax%5D=&field_longitude_value%5Bmin%5D=&field_phenomene_target_id=&field_type_de_cas_target_id=All&order=field_date_d_observation&page=%2C4&select-category-export=nothing&sort=desc

25. Source: haut-rhin.gouv.fr
Title: Les services de l’État dans le Haut-Rhin Drones
Link:https://www.haut-rhin.gouv.fr/Demarches-administratives/Autres-demarches/Drones

<summary>Source snippet</summary><p>Activités aériennes - Professions et activités réglementées - Démarches - Les services de l'État dans le Haut-Rhin…</p>

26. Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/en/recherche/cas/tab?customGetLattitude=46.94358292648825&customGetLongitude=4.4989013671875&customGetZoom=7&field_agregation_index_value=&field_date_d_observation_value%5Bmax%5D=&field_date_d_observation_value%5Bmin%5D=&field_date_value=&field_departement_target_id=&field_document_existe_ou_pas_value=All&field_is_new_value=All&field_is_revisited_value=All&field_latitude_value%5Bmax%5D=49.11702904077932&field_latitude_value%5Bmin%5D=44.77013681219717&field_longitude_value%5Bmax%5D=7.668457031250001&field_longitude_value%5Bmin%5D=1.329345703125&field_phenomene_target_id=&field_type_de_cas_target_id=All&order=field_departement_textuel&page=44%2C0&sort=desc

27. Source: cnes-geipan.fr
Link:https://cnes-geipan.fr/en/recherche/cas/tab?field_agregation_index_value=&field_date_d_observation_value%5Bmax%5D=&field_date_d_observation_value%5Bmin%5D=&field_date_value=&field_departement_target_id=&field_document_existe_ou_pas_value=All&field_is_new_value=All&field_is_revisited_value=All&field_latitude_value%5Bmax%5D=&field_latitude_value%5Bmin%5D=&field_longitude_value%5Bmax%5D=&field_longitude_value%5Bmin%5D=&field_phenomene_target_id=&field_type_de_cas_target_id=116&order=field_departement_textuel&page=109&select-category-export=nothing&sort=desc

28. Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/fr/recherche/cas/tab?customGetLattitude=46.94358292648825&customGetLongitude=4.4989013671875&customGetZoom=7&field_agregation_index_value=&field_date_d_observation_value%5Bmax%5D=&field_date_d_observation_value%5Bmin%5D=&field_date_value=&field_departement_target_id=&field_document_existe_ou_pas_value=All&field_is_new_value=All&field_is_revisited_value=All&field_latitude_value%5Bmax%5D=49.11702904077932&field_latitude_value%5Bmin%5D=44.77013681219717&field_longitude_value%5Bmax%5D=7.668457031250001&field_longitude_value%5Bmin%5D=1.329345703125&field_phenomene_target_id=&field_type_de_cas_target_id=All&order=field_departement_textuel&page=14&sort=asc

29. Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/sites/default/files/save_json_import_files/export_cas_pub_20251127093552.csv

30. Source: cnes-geipan.fr
Link:https://www.cnes-geipan.fr/en/recherche/cas/tab?field_document_existe_ou_pas_value=All&field_is_new_value=All&field_is_revisited_value=All&field_type_de_cas_target_id=All&order=field_date_d_observation&page=133&sort=asc

31. Source: scramble.nl
Link:https://www.scramble.nl/planning/airfield-guide/france/colmar-meyenheim

32. Source: ufotransparency.com
Title: intl fr geipan rixheim 2009 compte rendu7
Link:https://ufotransparency.com/files/intl-fr-geipan-rixheim-2009-compte-rendu7

33. Source: facebook.com
Link:https://www.facebook.com/groups/643827295701575/posts/6694754007275510/

34. Source: sia.aviation-civile.gouv.fr
Title: aviation-civile.gouv.fr LFS B
Link:https://www.sia.aviation-civile.gouv.fr/media/dvd/eAIP_16_APR_2026/Atlas-VAC/PDF_AIPparSSection/VACH/AD/AD-3.LFSB.pdf

35. Source: sia.aviation-civile.gouv.fr
Title: aviation-civile.gouv.fr A D 2 LFSB IAC RWY33 FNA ILS Y CAT1 LOC Y
Link:https://www.sia.aviation-civile.gouv.fr/media/dvd/eAIP_16_APR_2026/FRANCE/AIRAC-2026-04-16/html/eAIP/Cartes/LFSB/AD_2_LFSB_IAC_RWY33_FNA_ILS_Y_CAT1_LOC_Y.pdf

36. Source: open-data-insights.org
Link:https://www.open-data-insights.org/en/story/1762/

37. Source: airhistory.net
Link:https://www.airhistory.net/location/3604/Colmar-Meyenheim-LFSC

38. Source: hero.epa.gov
Link:https://hero.epa.gov/reference/448268/

39. Source: gendarmerie.interieur.gouv.fr
Title: des gendarmes face aux phenomenes aerospatiaux non identifies
Link:https://www.gendarmerie.interieur.gouv.fr/gendinfo/terrain/immersion/2018/des-gendarmes-face-aux-phenomenes-aerospatiaux-non-identifies

40. Source: chinook-helicopter.com
Title: Visual Illusions
Link:https://www.chinook-helicopter.com/standards/Illusions/Visual_Illusions.html

Additional References

41. Source: science.gov
Link:https://www.science.gov/topicpages/s/seine%2Bbasin%2Bfrance

42. Source: youtube.com
Title: UFO sighting likely Starlink satellites
Link:https://www.youtube.com/watch?v=lZC7NeKu2Vw

<summary>Source snippet</summary><p>Still not aliens - Starlink satellites pass over Ohio Thursday night…</p>

43. Source: researchgate.net
Link:https://www.researchgate.net/figure/a-Mean-fog-and-low-stratus-cover-in-the-Upper-Rhine-Valley-from-2006-to-2015-data-set_fig4_359448665

44. Source: fltplan.com
Link:https://fltplan.com/Airport.cgi?LFSB=

45. Source: aviontourism.com
Link:https://www.aviontourism.com/en/airport/basel-BSL

46. Source: boeing.com
Link:https://www.boeing.com/content/dam/boeing/boeingdotcom/commercial/noise/basel.pdf

47. Source: kupi.com
Link:https://www.kupi.com/en-ae/explore/switzerland/basel/euroairport-basel-mulhouse-freiburg

48. Source: cohor.org
Link:https://www.cohor.org/en/airports/euroairport-basel-mulhouse-freiburg-bsl-lszm/

49. Source: facebook.com
Link:https://www.facebook.com/EuroAirport/

50. Source: kupi.com
Link:https://www.kupi.com/en-ae/explore/france/mulhouse/airport-euroairport-basel-mulhouse-freiburg

Why Haut Rhin's Sky So Often Looks Strange