Inside the UFO Record of Norway
Norway’s UFO history is dominated by one exceptional case: the recurring lights of Hessdalen in Trøndelag. Unlike a single dramatic sighting, Hessdalen has produced decades of witness reports, photographs, radar returns and organised field observations. That makes it scientifically interesting, but it does not make it evidence of extraterrestrial craft.
Page outline Jump by section
Introduction
Norway’s UFO history is dominated by one exceptional case: the recurring lights of Hessdalen in Trøndelag. Unlike a single dramatic sighting, Hessdalen has produced decades of witness reports, photographs, radar returns and organised field observations. That makes it scientifically interesting, but it does not make it evidence of extraterrestrial craft. Researchers have documented genuine luminous events while also identifying aircraft, vehicle headlights, astronomical objects and artificial lights among the reports. No proposed natural mechanism has yet explained every credible observation.[hessdalen.org]old.hessdalen.orgTelling about the history of the lights and the running of the project. Then it lists all the instruments.Read more…
Elsewhere in Norway, the record is more fragmented. Military papers, private archives and newspaper reports preserve many incidents, but most lack the measurements needed for firm conclusions. Several spectacular Norwegian “UFOs”, most notably the 2009 spiral over northern Norway, were eventually explained by conventional technology. The national picture is therefore neither “nothing happened” nor “alien visitation confirmed”: Norway has a small number of unresolved observations embedded in a much larger body of incomplete, misidentified or explainable reports.
How Norway’s UFO record developed
Norwegian accounts of unusual lights pre-date the modern flying-saucer era, although early material is difficult to assess because it usually survives as folklore, newspaper copy or retrospective testimony rather than contemporaneous technical documentation. A specialist survey of pre-1947 Norwegian incidents describes the surviving record as incomplete and under-researched, an important warning against treating old anecdotes as a reliable national chronology.[Academia]academia.eduThis is a very little researched area, and much remains to be doneAcademia(PDF) Brænne Pre 1947 UFO type incidents in NorwayJanuary 1, 1992 — This short paper aims to give a survey of pre-1947 sightings…
The modern phase began after the international UFO publicity wave of the late 1940s. Reports were sent to newspapers, civilian investigators and, in some cases, the Norwegian armed forces. Material reportedly released from defence files covers incidents and correspondence from 1954 to 1970. Its existence is historically significant because it shows that Norwegian authorities recorded and circulated reports, but declassification alone does not validate the extraordinary interpretations later attached to them. Administrative files may contain witness statements, requests for checks and inconclusive correspondence without establishing what was physically present.[uapcheck.com]uapcheck.comnorwegian ufo archives declassified8 Apr 2024 — A journalist obtained the declassification of Norwegian UFO archives from the High Command of the Armed Forces…
A private research culture also developed. Norwegian groups collected reports, published case summaries and corresponded with investigators elsewhere in Scandinavia. Surviving periodicals provide valuable leads, but their quality varies: some preserve otherwise inaccessible testimony, while others mix observations, speculation and advocacy. They are best treated as finding aids whose cases must be checked against original photographs, weather data, astronomical positions, aviation records and contemporary documents.[norskufosenter.no]norskufosenter.noUFOUFO – 1983-5De i "UFO" offentliggjorte artikler fremstår som bidrag til kjennskap om og forståelse av UFO-fenomenene og forskningen av di…
The decisive turning point came in the early 1980s. Residents of Hessdalen reported an unusually intense sequence of moving and stationary lights, sometimes several times within a week. In 1983, investigators organised Project Hessdalen, followed by an instrumented field campaign from 21 January to 26 February 1984. The project’s final report recorded 53 visual observations during that campaign. A shorter winter campaign in 1985 produced no comparable instrumented detections, illustrating how irregular the activity could be.[old.hessdalen.org]old.hessdalen.orgTelling about the history of the lights and the running of the project. Then it lists all the instruments.Read more…
Later work moved from temporary expeditions towards continuous monitoring. An automatic measurement station was established in the valley, and Norwegian and Italian researchers conducted further optical, radio and radar studies under projects including EMBLA. Current Project Hessdalen describes itself as a volunteer citizen-science organisation rather than a government UAP office.[Project Hessdalen]hessdalen.orgOpen source on hessdalen.org.
Why Hessdalen remains Norway’s strongest case
Hessdalen is unusual because the basic phenomenon is not dependent on a single witness. Residents, visiting observers and cameras have repeatedly recorded lights in the same valley. Reported appearances include white, yellow or reddish luminous points, sometimes stationary and sometimes moving along or above the valley. The strongest period appears to have been from late 1981 into 1984; later observations became less frequent.[Wikipedia]WikipediaHessdalen lightsHessdalen lights
The 1984 investigation used cameras, radar, magnetometers, seismographic equipment, radio receivers, weather instruments and other devices. This was a considerable improvement over ordinary UFO casework, where investigators often begin after the event with only memories and a blurred photograph. Yet the resulting dataset remained limited. Instruments did not always observe the same target simultaneously, distance was often uncertain, and a point of light without reliable range information can appear to move faster, shine more powerfully or occupy a different altitude than it really does.[old.hessdalen.org]old.hessdalen.orgTelling about the history of the lights and the running of the project. Then it lists all the instruments.Read more…
Later campaigns reported optical spectra and radar observations. A 2010 technical paper described Hessdalen as a recurring low-atmosphere luminous phenomenon that had resisted a single accepted explanation after decades of study. Other research reported spectra with limited resolution and explored possible atmospheric or geophysical mechanisms. These studies support the proposition that at least some observations represent real light-emitting or light-reflecting events. They do not establish that the lights are structured vehicles, intelligently controlled objects or technology of non-human origin.[sciencedirect.com]sciencedirect.comInvestigation & analysis of transient luminous phenomena…by BG Hauge · 2010 · Cited by 7 — Researchers have tried to expl…
Claims about the lights’ power and composition require particular caution. One EMBLA analysis estimated luminosities as high as roughly 100 kilowatts, but the calculation depended heavily on estimated distance. If the assumed range was wrong, the inferred power would also be wrong. Subsequent work has indicated that at least some events may have been much nearer and less luminous than early calculations suggested.[ResearchGate]researchgate.net252836793 EMBLA 2002 an Optical and Ground Survey in Hessdalen252836793 EMBLA 2002 an Optical and Ground Survey in Hessdalen
Spectroscopy has also produced mixed results. Some recorded spectra were consistent with ordinary sources such as mercury lighting, incandescent lamps or neon-xenon lights. Other low-resolution spectra were treated as possible measurements of an anomalous phenomenon, but the limits of calibration, range and source identification prevent a definitive chemical “fingerprint” for a unique Hessdalen object.[ResearchGate]researchgate.netResearch Gate Optical spectrum analysis of the Hessdalen phenomenonResearch Gate Optical spectrum analysis of the Hessdalen phenomenon
A phenomenon, not necessarily one phenomenon
The most defensible interpretation is that “the Hessdalen lights” are probably a collection of different things rather than a single cause. The valley can produce reports involving:
- aircraft and helicopters;
- stars, planets and atmospheric distortion;
- vehicle headlights seen across uneven terrain;
- distant buildings or other artificial light sources;
- photographic effects and uncertain exposures;
- and a residual group of luminous events that remain insufficiently explained.
This mixed-population model accounts for an otherwise awkward feature of the evidence: descriptions vary from stationary points to rapidly moving balls, flashing sources, elongated forms and apparently structured objects. A single physical mechanism need not explain every report made under the Hessdalen label. Investigators themselves have identified conventional sources within the photographic and spectral record.[Wikipedia]WikipediaHessdalen lightsHessdalen lights
What might produce the unexplained lights?
Several natural models have been proposed, but none has achieved broad confirmation through repeatable prediction and independent measurement.
One family of hypotheses treats the lights as plasma or ionised gas. Suggested triggers include atmospheric electricity, dust, radon decay and interactions between charged particles and the local geological environment. Laboratory and theoretical work shows that dusty plasmas can form organised structures, but demonstrating that such processes occur in Hessdalen with the required scale, brightness and duration is a separate problem. A mechanism that is physically possible is not automatically the explanation of a field observation.[Wikipedia]WikipediaHessdalen lightsHessdalen lights
A related proposal describes the valley as a natural electrochemical system, with differing mineral formations acting like electrodes and water or moist ground providing an electrolyte. Such a “natural battery” might help create electrical discharges or luminous gas. The idea is intriguing because Hessdalen lies in an old mining region with varied geology, but it remains a hypothesis rather than a demonstrated full explanation.[Wikipedia]WikipediaHessdalen lightsHessdalen lights
Piezoelectric models suggest that stress in quartz-bearing rock could generate electrical charges. Similar ideas have been proposed for earthquake lights. However, a credible Hessdalen application would need to show that local rock strain occurs at the right times, releases sufficient energy and correlates consistently with observed lights. That chain has not been established.[Wikipedia]WikipediaHessdalen lightsHessdalen lights
Ball lightning is frequently mentioned, but it is a broad label rather than a complete solution. Classical ball-lightning reports are often associated with thunderstorms, whereas Hessdalen events have occurred under varied conditions and can reportedly persist longer than many conventional descriptions. A wider category of unusual atmospheric plasma might eventually prove relevant, but present evidence does not justify treating “ball lightning” as a settled identification.
The extraterrestrial-spacecraft interpretation is weaker still. No publicly available Hessdalen dataset shows a recovered object, biological evidence, intelligible communication or a clearly resolved craft performing measured manoeuvres beyond known technology. The surviving anomaly is therefore an unresolved luminous phenomenon, not confirmed alien machinery.
Official files: useful records, limited conclusions
Norway does not appear to have maintained a large, continuously public UFO-investigation programme comparable to France’s present civil reporting and analysis system. Instead, official involvement has been episodic: defence personnel received reports, conducted enquiries where airspace or security might be involved, and retained correspondence in military files.
The reported release of a Norwegian defence folder covering 1954–70 improves access to that history. It is useful for establishing dates, official routing and what witnesses said at the time. It should not be treated as a collection of verified unknown craft. Military archives naturally preserve unresolved reports because uncertainty may matter to air defence; “unidentified” often means that available information was inadequate, not that conventional causes were eliminated.[uapcheck.com]uapcheck.comnorwegian ufo archives declassified8 Apr 2024 — A journalist obtained the declassification of Norwegian UFO archives from the High Command of the Armed Forces…
The 1967 incident associated with a lake in Aure illustrates the problem. Later accounts describe witnesses seeing a dark or cigar-shaped object descend towards or enter the water, followed by military interest and attempts to locate it. The case is memorable, but accessible retellings are inconsistent about the precise location, sequence and physical evidence. No publicly demonstrated wreckage or instrument record establishes that an object actually entered the lake. Until the original documents, maps, witness statements and search records are assessed together, the case remains an intriguing archival incident rather than a confirmed crash or landing.[Reddit]reddit.comThe UFO landing in Aure, NorwayThe UFO landing in Aure, Norway
Official provenance improves a document’s value, but not necessarily the truth of every claim inside it. A witness statement in a defence file proves that the statement was recorded. It does not by itself prove the witness’s interpretation.
Regional patterns across Norway
Norway’s geography shapes both what people see and what can be misidentified.
Trøndelag and the central interior are central because of Hessdalen. Mountain ridges, long sight lines, sparse settlement and roads crossing elevated terrain create difficult distance judgements. The same landscape also makes recurring observation from fixed stations practical, which is why Hessdalen has produced more useful data than most Norwegian sites.
Northern Norway generates dramatic reports because it combines dark winters, aurora, military activity, rocket launches, coastal aviation and exceptionally broad views of the sky. The most famous example is the spiral seen on 9 December 2009 across northern Norway and parts of Sweden. Photographs showed a blue beam and an expanding white spiral, prompting speculation about UFOs and exotic physics. Russia subsequently confirmed that a Bulava ballistic-missile test had failed during its third stage. A spinning rocket venting exhaust provides a coherent explanation for the geometry and timing.[wikipedia.org]Wikipedia2009 Norwegian spiral anomaly2009 Norwegian spiral anomaly
The spiral matters because it demonstrates how an authentic, widely witnessed and genuinely extraordinary-looking event can have a conventional explanation. The witnesses were not imagining the display; the error lay in interpreting an unfamiliar aerospace event without the relevant launch information.
Coastal and maritime regions present different difficulties. Lights from ships, offshore installations, lighthouses, aircraft and celestial objects can be viewed over water without familiar distance cues. Temperature inversions may also distort or elevate distant lights. Reports of objects entering the sea are especially difficult to evaluate because apparent descent towards a horizon can resemble entry into water even when the source is far beyond the visible coastline.
Urban southern Norway offers more potential sources of misidentification, including air traffic, drones, advertising lights, satellites and lanterns. It also offers more observers and cameras. Raw sighting totals therefore cannot be read simply as maps of anomalous activity: they reflect population, reporting habits, visibility, local technology and the presence of investigators.
The evidence ledger for Norway’s UFO record
Norway’s evidence becomes clearer when separated by what the documentation can actually support.
Confirmed observations
It is well established that people in Hessdalen have repeatedly seen unusual lights and that some events have been photographed or registered during organised observation campaigns. It is also confirmed that Norwegian military authorities received UFO reports and retained related files. These are facts about observations and records, not proof of an exotic origin.[hessdalen.org]old.hessdalen.orgTelling about the history of the lights and the running of the project. Then it lists all the instruments.Read more…
Contested interpretations
Some Hessdalen events remain unexplained because the available data do not permit confident identification. Proposed plasma, geological and electrochemical mechanisms are plausible research directions, but none yet accounts for the complete body of observations. High estimates of speed, distance or luminosity are particularly vulnerable where triangulation was absent or uncertain.[sciencedirect.com]sciencedirect.comInvestigation & analysis of transient luminous phenomena…by BG Hauge · 2010 · Cited by 7 — Researchers have tried to expl…
The Aure lake incident and similar historical cases also belong in the contested category. Their unresolved status reflects incomplete evidence, inconsistent retelling and limited public access to primary documentation. It should not be converted into a positive conclusion that an extraordinary vehicle was recovered or concealed.
Debunked or conventionally resolved cases
The 2009 Norway spiral is the clearest high-profile example: a failed Russian missile produced an unfamiliar but physically understandable display. Within Hessdalen research, some apparent anomalies have been matched to street lighting, incandescent or gas-discharge lamps, vehicle lights and astronomical sources. These identifications do not eliminate every remaining case; they show why each event must be analysed separately.[slideshare.net]slideshare.netOpen source on slideshare.net.
What would count as stronger evidence?
The Norwegian record shows why testimony and isolated photographs rarely settle UFO questions. A genuinely strong future Hessdalen detection would need simultaneous observations from separated calibrated stations, enabling triangulation of distance, altitude, size and velocity. It should combine wide-field and narrow-field imagery with optical spectra, radar or lidar, weather measurements and complete aviation and satellite checks.
Equally important is transparent negative evidence. Investigators should publish unsuccessful observations, calibration tests and cases later identified as ordinary sources. Without that material, a collection can become biased towards its most mysterious images.
Modern ground-based UAP research increasingly emphasises this multimodal approach: several independent sensors observing the same event, with enough metadata to distinguish physical objects from lens effects, insects, reflections and distant lights. Hessdalen is well suited to such work because the phenomenon is geographically recurrent, but its scientific value will depend on reproducible measurements rather than the accumulation of additional anecdotes.[arXiv]arxiv.orgOpen source on arxiv.org.
What the record supports about Norway’s UFO record
Norway has a genuine history of unidentified aerial reports, but the strength of that history is uneven. Hessdalen stands apart because recurrent lights have been observed during organised fieldwork and some events remain inadequately explained. Even there, the evidence supports an unresolved class of luminous phenomena more strongly than it supports a single exotic object or extraterrestrial technology.
The wider Norwegian archive is useful for reconstructing how civilians, journalists, private groups and defence authorities handled unusual sightings. Its limitations are equally important: missing range data, uncertain chronology, retrospective testimony, inaccessible originals and the tendency for unresolved paperwork to be mistaken for official confirmation.
The practical lesson from Norway is not that every strange light has an ordinary answer, nor that every unanswered report points beyond known science. It is that “unidentified” is an intermediate finding. The 2009 spiral shows how spectacular appearances can be explained when decisive contextual information arrives; Hessdalen shows how much harder the problem becomes when recurring events are real enough to record but too poorly constrained to identify with confidence.
Amazon book picks
Further Reading
Books and field guides related to What Really Happened in Norway's UFO Skies?. Use these as the next step if you want deeper reading beyond the article.
UFOs: Generals, Pilots, and Government Officials Go on the Re...
Provides a balanced, evidence-focused framework for assessing unexplained aerial sightings like those discussed in Norway.
Passport to Magonia
Connects historical reports, folklore and modern sightings, offering useful context for evaluating older Norwegian accounts.
The UFO Experience
Explains methods for classifying and investigating reports rather than assuming extraordinary explanations.
Identified Flying Objects
Explores competing hypotheses for unusual aerial phenomena, complementing discussion of unresolved Norwegian cases.
eBay marketplace picks
Marketplace Samples
Live-tested eBay searches with available results related to this page.
Selected fromUFO wall art oneBay.co.uk.
Endnotes
1.
Source: old.hessdalen.org
Link:https://old.hessdalen.org/reports/hpreport84.shtml
Source snippet
Telling about the history of the lights and the running of the project. Then it lists all the instruments.Read more...
2.
Source: sciencedirect.com
Link:https://www.sciencedirect.com/science/article/abs/pii/S0094576510000329
Source snippet
Investigation & analysis of transient luminous phenomena...by BG Hauge · 2010 · Cited by 7 — Researchers have tried to expl...
3.
Source: hessdalen.org
Link:https://hessdalen.org/reports/scex1802217251.pdf
Source snippet
(Teodorani & Nobili, 2002), consisting of two groups: an engineering group and a...Read more...
4.
Source: academia.edu
Title: This is a very little researched area, and much remains to be done
Link:https://www.academia.edu/92899529/Br%C3%A6nne_Pre_1947_UFO_type_incidents_in_Norway
Source snippet
Academia(PDF) Brænne Pre 1947 UFO type incidents in NorwayJanuary 1, 1992 — This short paper aims to give a survey of pre-1947 sightings...
Published: January 1, 1992
5.
Source: uapcheck.com
Title: norwegian [ufo archives]({{ ‘ufo-archives-c50dae/’ | relative_url }}) declassified
Link:https://www.uapcheck.com/news/id/2490/norwegian-ufo-archives-declassified/
Source snippet
8 Apr 2024 — A journalist obtained the declassification of Norwegian UFO archives from the High Command of the Armed Forces...
6.
Source: norskufosenter.no
Title: UFO 1983 5
Link:https://norskufosenter.no/wp-content/uploads/2022/12/UFO-1983-5.pdf
Source snippet
UFO – 1983-5De i "UFO" offentliggjorte artikler fremstår som bidrag til kjennskap om og forståelse av UFO-fenomenene og forskningen av di...
7.
Source: norskufosenter.no
Title: UFO 2011 1
Link:https://norskufosenter.no/wp-content/uploads/2021/08/UFO-2011-1.pdf
Source snippet
UFO Nr. 1/2011Hessdalen v/Erling ・ viser dokumenter fra det britiske forsvaret. oktober 2002 viser at skipsloggen ・ løse UFO-mysteriet i...
8.
Source: hessdalen.org
Link:https://www.hessdalen.org/
9.
Source: Wikipedia
Title: Hessdalen lights
Link:https://en.wikipedia.org/wiki/Hessdalen_lights
10.
Source: researchgate.net
Link:https://www.researchgate.net/publication/262529187_Optical_spectroscopy_and_radar_analysis_of_transient_luminous_phenomena_in_the_low_atmosphere_over_Hessdalen_valley_NORWAY
11.
Source: researchgate.net
Title: 252836793 EMBLA 2002 an Optical and Ground Survey in Hessdalen
Link:https://www.researchgate.net/publication/252836793_EMBLA_2002_an_Optical_and_Ground_Survey_in_Hessdalen
12.
Source: researchgate.net
Title: Research Gate Optical spectrum analysis of the Hessdalen phenomenon
Link:https://www.researchgate.net/publication/228873038_Optical_spectrum_analysis_of_the_Hessdalen_phenomenon
13.
Source: slideshare.net
Link:https://www.slideshare.net/slideshow/2007-hauge/14254275
14.
Source: reddit.com
Title: The UFO landing in Aure, Norway
Link:https://www.reddit.com/r/UFOs/comments/1bsjoc3/the_ufo_landing_in_aure_norway_recently/
15.
Source: Wikipedia
Title: 2009 Norwegian spiral anomaly
Link:https://en.wikipedia.org/wiki/2009_Norwegian_spiral_anomaly
16.
Source: csmonitor.com
Title: norway spiral a rocket scientist explains the mystery
Link:https://www.csmonitor.com/World/Global-News/2009/1210/norway-spiral-a-rocket-scientist-explains-the-mystery
17.
Source: hessdalen.org
Link:https://www.hessdalen.org/reports
18.
Source: arxiv.org
Link:https://arxiv.org/abs/2305.18566
19.
Source: news.sky.com
Link:https://news.sky.com/story/ufo-files-latest-new-release-in-us-reveals-reports-of-unexplained-green-orbs-discs-and-fireballs-13543508
20.
Source: researchgate.net
Link:https://www.researchgate.net/publication/228609015_A_long-term_scientific_survey_of_the_Hessdalen_phenomenon
21.
Source: researchgate.net
Link:https://www.researchgate.net/publication/222796277_Investigation_analysis_of_transient_luminous_phenomena_in_the_low_atmosphere_of_Hessdalen_valley_Norway
22.
Source: researchgate.net
Link:https://www.researchgate.net/publication/252231155_Hessdalen_Light_Phenomena_and_the_Inconsistency_of_the_Car-Headlight_Interpretation
23.
Source: old.hessdalen.org
Link:https://old.hessdalen.org/news/NUFOC.shtml
24.
Source: old.hessdalen.org
Link:https://old.hessdalen.org/pictures/
25.
Source: hessdalen.org
Link:https://www.hessdalen.org/theories
26.
Source: old.hessdalen.org
Title: Hessdal article2000.shtml
Link:https://old.hessdalen.org/reports/Hessdal-article2000.shtml
27.
Source: old.hessdalen.org
Link:https://old.hessdalen.org/reports/
28.
Source: norwegian.com
Link:https://www.norwegian.com/
29.
Source: Wikipedia
Title: UFO sightings in Norway
Link:https://en.wikipedia.org/wiki/UFO_sightings_in_Norway
30.
Source: Wikipedia
Link:https://en.wikipedia.org/wiki/Hessdalen
31.
Source: Wikipedia
Title: List of reported UFO sightings
Link:https://en.wikipedia.org/wiki/List_of_reported_UFO_sightings
32.
Source: Wikipedia
Title: Unidentified flying object
Link:https://en.wikipedia.org/wiki/Unidentified_flying_object
33.
Source: Wikipedia
Title: UFO (band)
Link:https://en.wikipedia.org/wiki/UFO_%28band%29
34.
Source: Wikipedia
Link:https://en.wikipedia.org/wiki/Norway
35.
Source: Wikipedia
Title: Norwegian Air Shuttle
Link:https://en.wikipedia.org/wiki/Norwegian_Air_Shuttle
36.
Source: reddit.com
Link:https://www.reddit.com/r/HighStrangeness/comments/1c2oheq/norwegian_ufo_archives_declassified_the_released/
37.
Source: reddit.com
Link:https://www.reddit.com/r/UFOs/comments/190paix/hessdalen_norway_documentary/
38.
Source: reddit.com
Title: newnorwegian ufo document leak 1967 spitsbergen
Link:https://www.reddit.com/r/ufo/comments/1bsjksn/newnorwegian_ufo_document_leak_1967_spitsbergen/
39.
Source: reddit.com
Title: ufo mentioned in declassified documents
Link:https://www.reddit.com/r/UFOs/comments/1bsjs19/ufo_mentioned_in_declassified_documents/
40.
Source: reddit.com
Link:https://www.reddit.com/r/todayilearned/comments/13j86m1/til_there_is_a_phenomenon_in_norway_called_the/
41.
Source: reddit.com
Link:https://www.reddit.com/r/UFOB/comments/1ax7uzv/a_ufo_adventure_is_currently_unfolding_near/
42.
Source: reddit.com
Link:https://www.reddit.com/r/ufo/
43.
Source: reddit.com
Link:https://www.reddit.com/r/UFOs/
44.
Source: reddit.com
Link:https://www.reddit.com/r/science/comments/acp3d/strange_spiral_phenomenon_appearing_on_the_sky_in/
45.
Source: csmonitor.com
Link:https://www.csmonitor.com/USA/Society/2026/0519/ufo-secret-file-release-alien-trump
46.
Source: academia.edu
Title: NORWAY IN UFO PHOTOGRAPHS THE FIRST CATALOGUE
Link:https://www.academia.edu/12870685/NORWAY_IN_UFO_PHOTOGRAPHS_THE_FIRST_CATALOGUE
47.
Source: ia600600.us.archive.org
Title: UFOs The Definitive Casebook LQ2
Link:https://ia600600.us.archive.org/10/items/ufos-the-definitive-casebook-lq-2/UFOs_The_Definitive_Casebook_LQ2.pdf
48.
Source: time.com
Title: see the norwegian town at the center of a ufo mania
Link:https://time.com/3824196/see-the-norwegian-town-at-the-center-of-a-ufo-mania/
49.
Source: societyforuapstudies.org
Title: project hessdalen
Link:https://www.societyforuapstudies.org/project-hessdalen
50.
Source: facebook.com
Link:https://www.facebook.com/groups/663488548027128/posts/1376985026677473/
51.
Source: military-history.fandom.com
Title: 2009 Norwegian spiral anomaly
Link:https://military-history.fandom.com/wiki/2009_Norwegian_spiral_anomaly
52.
Source: frontiersin.org
Link:https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2016.00017/full
Additional References
53.
Source: youtube.com
Title: MYSTERIOUS LIGHTS over Norway | The Proof is Out There (Season 2) | History
Link:https://www.youtube.com/watch?v=7hBUk13yE8s
Source snippet
The Mysterious Lights of Hessdalen | A True Norwegian Mystery Told Softly...
54.
Source: youtube.com
Title: The Mysterious Lights of Hessdalen | A True Norwegian Mystery Told Softly
Link:https://www.youtube.com/watch?v=3jLN3PGHvK0
Source snippet
What Is This Mysterious Spiral Anomaly in the Norwegian Sky?...
55.
Source: war.gov
Link:https://www.war.gov/ufo/
56.
Source: cia.gov
Link:https://www.cia.gov/readingroom/docs/DOC_0005516086.pdf
57.
Source: youtube.com
Title: THE HESSDALEN PHENOMENON
Link:https://www.youtube.com/watch?v=8ve7k-msyXk
Source snippet
MYSTERIOUS LIGHTS over Norway | The Proof is Out There (Season 2) | History...
58.
Source: youtube.com
Title: What Is This Mysterious Spiral Anomaly in the Norwegian Sky?
Link:https://www.youtube.com/watch?v=FgWgsstTx-8
Source snippet
Giant sky spiral shocks Norwegians in December 2009...
Published: December 2009
59.
Source: poddtoppen.se
Link:https://poddtoppen.se/podcast/1758217965/unexplained-phenomena-daily/norways-hessdalen-lights-decades-of-scientific-study-still-no-explanation
60.
Source: facebook.com
Link:https://www.facebook.com/groups/625436697499583/posts/7266561173387069/
61.
Source: instagram.com
Link:https://www.instagram.com/reel/DTNjUGZDLKk/
62.
Source: tripadvisor.co.uk
Link:https://www.tripadvisor.co.uk/Tourism-g25174316-Hessdalen_Holtalen_Municipality_Trondelag_Central_Norway-Vacations.html