Within Explanations
When aurora starts to look like craft
Northern lights can look object-like when curtains, rays and pulses appear through cloud, frost or a windscreen.
On this page
- How aurora changes shape and brightness
- Why clouds, frost and windscreens distort sightings
- What details separate aurora from object reports
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Introduction
In the Northwest Territories, some of the most convincing “UFO lights” turn out to be the northern lights themselves. This is not because witnesses are careless. It is because the territory sits beneath one of the world’s most active auroral regions, where bright arcs, rays and pulsing curtains can change shape rapidly and create the impression of structured objects in the sky. Around Yellowknife, Inuvik and other northern communities, observers regularly see aurora displays that appear to hover, split, brighten, rotate or form geometric patterns that can resemble distant craft, formations of lights or glowing objects. [Canadian Space Agency]asc-csa.gc.caCanadian Space Agency What are the northern lights?Canadian Space Agency17 Jan 2024 — The northern lights, or aurora borealis, are a spectacular, colourful display of light commonly seen…
Within Northwest Territories UFO history, aurora-related misidentifications matter because many reports begin with lights rather than clearly defined solid objects. Understanding how aurora behaves helps separate sightings that are likely natural sky phenomena from reports that remain genuinely difficult to explain.
When aurora starts to look like craft
Aurora is not a fixed glow. It can appear as arcs, ribbons, pillars, rays, patches and large curtains stretching across the sky. During active periods these forms can brighten suddenly, ripple like fabric, or break into separate-looking segments. NOAA Space Weather Prediction Center+2spaceweather.gov [swpc.noaa.gov]swpc.noaa.govThe latitude of the evening arcs depends on the…Read more…
To an observer unfamiliar with auroral dynamics, several features can resemble a structured object:
- A bright auroral arc may look like a long, stationary craft.
- Vertical rays can resemble illuminated windows or separate lights.
- Pulsing sections can appear to switch on and off independently.
- Multiple parallel arcs can look like a formation of objects.
- Rapid brightening can create the impression of acceleration.
- Curving curtains can resemble the outline of a huge disc or wedge. NOAA Space Weather Prediction Center+2spaceweather.gov [swpc.noaa.gov]swpc.noaa.govThe latitude of the evening arcs depends on the…Read more…
The effect is strongest when only part of the aurora is visible. A witness who sees a glowing section through trees, over a ridge, or between clouds may perceive a discrete object rather than a much larger atmospheric display.
This is particularly relevant in the Northwest Territories because aurora can be bright enough to dominate the entire northern sky while still appearing localised from a single viewing position. Yellowknife’s reputation as one of the world’s premier aurora-viewing locations exists precisely because such displays are frequent and intense. [Space]space.com15139 northern lights auroras earth facts sdcmpnorthern lights show looks like vibrant green curtains in the sky with tall pillars of light.Read more…
How aurora changes shape and brightness
One reason aurora is repeatedly mistaken for unusual aerial objects is its ability to transform rapidly without moving like a conventional aircraft.
Scientific descriptions of aurora consistently emphasise its curtain-like structure. Rays form along Earth’s magnetic field lines and can appear to fold, wave and twist. Near midnight, auroral arcs often develop ripples and travelling disturbances that seem to move across the sky. During geomagnetic activity, displays can become dramatically brighter within minutes. NOAA Space Weather Prediction Center+2Royal Museums Greenwich [swpc.noaa.gov]swpc.noaa.govThe latitude of the evening arcs depends on the…Read more…
From the ground, these changes can produce several illusions:
- A stationary feature appears to drift because neighbouring sections brighten.
- A large curtain seems to rotate as different rays become visible.
- A diffuse glow suddenly acquires sharp edges.
- Separate bright patches appear and disappear, mimicking multiple objects. NOAA Space Weather Prediction Center+2spaceweather.gov [swpc.noaa.gov]swpc.noaa.govThe latitude of the evening arcs depends on the…Read more…
Witnesses sometimes describe lights that “dance”, “pulse”, “hover” or “change shape”. Those descriptions can fit genuine auroral behaviour remarkably well, especially during strong geomagnetic disturbances. Auroras are often described scientifically as dynamic displays whose structure can alter continuously over short periods. [sidc.be+2NASA Scientific Visualization Studio]sidc.bered 10 to 20 degrees around the magnetic pole.Read more…
Why clouds, frost and windscreens distort sightings
Aurora alone can look unusual, but common northern viewing conditions can make the effect much stronger.
In winter, observers frequently watch the sky through vehicle windscreens, cabin windows or layers of frost. Reflections from dashboard lights, interior lighting and ice crystals can fragment a continuous auroral display into what appears to be a cluster of separate lights.
Clouds add another layer of confusion. Thin cloud can hide part of an auroral curtain while leaving brighter sections exposed. Instead of seeing one large display, an observer may perceive isolated glowing segments that resemble individual objects. Snow crystals and ice haze can further soften edges and create apparent halos around bright auroral features. [Northern Shots Tours]northernshotstours.comNorthern Shots Tours Aurora Myths and Facts: Discovering the Truth BehindNorthern Shots ToursAurora Myths and Facts: Discovering the Truth Behind…October 30, 2024 — 30 Oct 2024 — While local weather conditio…
Perspective effects are especially deceptive near the horizon. The University of Alaska’s aurora guidance notes that auroral curtains can appear to touch mountains or rise like columns of smoke because of viewing geometry rather than actual proximity. The same illusion can make a distant auroral structure seem like a large object hovering just above the landscape. [gi.alaska.edu]gi.alaska.eduAurora ForecastThe auroral curtain sometimes appears to touch a distant mountain top or even rise like smoke. This illusion occurs becaus…
In the Northwest Territories, where long winter nights, frozen landscapes and low-angle viewing are common, these distortions occur under exactly the conditions in which many unusual-light reports are made.
What details separate aurora from object reports
Aurora does not explain every report of strange lights, but several clues often distinguish auroral displays from reports of discrete aerial objects.
Signs that favour an auroral explanation include:
- The sighting occurs during an active northern-lights display.
- The light covers a broad area of sky rather than a single point.
- Colours shift between green, red, purple or white.
- Structure appears curtain-like, ray-like or diffuse.
- Brightness changes continuously rather than flashing in a regular pattern.
- Movement resembles flowing, rippling or expanding rather than direct travel from one location to another. [spaceweather.gov+2Canadian Space Agency]spaceweather.govAurora | NOAA / NWS Space Weather Prediction CenterAurora comes in several different shapes. Often the auroral forms are made of many tal…
By contrast, reports become harder to explain as aurora when witnesses consistently describe:
- A sharply defined object with a stable outline.
- Independent manoeuvres against the background sky.
- Directional travel over long distances.
- Corroborating radar or aviation observations.
- Behaviour unrelated to known auroral activity.
The distinction is important because many Northwest Territories UFO reports begin with unusual lights but provide too little information to determine whether the witness saw aurora, an aircraft, a satellite or something else. The more detailed the description, the easier it becomes to assess.
Why aurora mix-ups remain common in the Northwest Territories
Aurora-related UFO reports persist not because the phenomenon is poorly understood by scientists, but because the visual experience can be genuinely surprising. Even people who know what the northern lights are may encounter an especially bright or unusual display that briefly resembles something structured and artificial.
The Northwest Territories combines three factors that encourage such reports: frequent auroral activity, exceptionally dark skies and vast open horizons. Together they allow people to see forms and movements that urban observers rarely encounter. [Canadian Space Agency]asc-csa.gc.canorthern lightsCanadian Space AgencyNorthern lights | Canadian Space Agency25 Jan 2024 — Information about auroras and tips on how to view and photograp…
For students of the territory’s UFO history, aurora therefore occupies a special category. It is not merely a routine explanation applied after the fact. It is a powerful visual phenomenon capable of producing sightings that sincerely appear object-like, especially when viewed through cloud, frost, distance or limited perspective. Understanding that mechanism helps explain why some reports of structured lights weaken under investigation, while others require closer examination before any conclusion can be reached.
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Further Reading
Books and field guides related to When aurora starts to look like craft. Use these as the next step if you want deeper reading beyond the article.
The Northern Lights
First published 2001. Subjects: Auroras, Biography, Geophysicists, Noorderlicht, Polarlicht.
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Endnotes
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Source: space.com
Title: 15139 northern lights auroras earth facts sdcmp
Link: https://www.space.com/15139-northern-lights-auroras-earth-facts-sdcmp.htmlSource snippet
northern lights show looks like vibrant green curtains in the sky with tall pillars of light.Read more...
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Source: swpc.noaa.gov
Link: https://www.swpc.noaa.gov/content/aurora-tutorialSource snippet
The latitude of the evening arcs depends on the...Read more...
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Source: spaceweather.gov
Link: https://www.spaceweather.gov/phenomena/auroraSource snippet
Aurora | NOAA / NWS Space Weather Prediction CenterAurora comes in several different shapes. Often the auroral forms are made of many tal...
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Source: svs.gsfc.nasa.gov
Link: https://svs.gsfc.nasa.gov/12040/Source snippet
Observes Auroras Across Canada4 Nov 2015 — The dancing lights in the video are the aurora borealis or Northern Lights. These auroras are...
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Source: spaceweather.gov
Link: https://www.spaceweather.gov/communities/aurora-dashboard-experimentalSource snippet
Aurora Dashboard (Experimental) | NOAA / NWS...The aurora's colorful green, red, and purple light shifts gently and often changes shape...
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Source: sidc.be
Link: https://sidc.be/article/aurora-lookalikesSource snippet
red 10 to 20 degrees around the magnetic pole.Read more...
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Source: gi.alaska.edu
Link: https://www.gi.alaska.edu/monitors/aurora-forecastSource snippet
Aurora ForecastThe auroral curtain sometimes appears to touch a distant mountain top or even rise like smoke. This illusion occurs becaus...
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Source: ncei.noaa.gov
Title: science beauty and mystery auroras
Link: https://www.ncei.noaa.gov/news/science-beauty-and-mystery-aurorasSource snippet
Science, Beauty, and Mystery of Auroras | News30 Mar 2017 — In vivid reds, greens, yellows, and blues, auroras look like wavy or shimmer...
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Source: asc-csa.gc.ca
Title: Canadian Space Agency What are the northern lights?
Link: https://www.asc-csa.gc.ca/eng/astronomy/northern-lights/what-are-northern-lights.aspSource snippet
Canadian Space Agency17 Jan 2024 — The northern lights, or aurora borealis, are a spectacular, colourful display of light commonly seen...
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Source: asc-csa.gc.ca
Title: northern lights
Link: https://www.asc-csa.gc.ca/eng/astronomy/northern-lights/Source snippet
Canadian Space AgencyNorthern lights | Canadian Space Agency25 Jan 2024 — Information about auroras and tips on how to view and photograp...
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Source: rmg.co.uk
Link: https://www.rmg.co.uk/stories/space-astronomy/what-causes-northern-lights-aurora-borealis-explainedSource snippet
Royal Museums GreenwichWhat causes the Northern Lights? Aurora borealis explainedThe aurora's characteristic wavy patterns and 'curtains'...
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Source: northernshotstours.com
Title: Northern Shots Tours Aurora Myths and Facts: Discovering the Truth Behind
Link: https://www.northernshotstours.com/aurora-myths-and-facts-discovering-the-truth-behind-the-northern-lights/Source snippet
Northern Shots ToursAurora Myths and Facts: Discovering the Truth Behind...October 30, 2024 — 30 Oct 2024 — While local weather conditio...
Published: October 30, 2024
Additional References
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Source: astrobackyard.com
Link: https://astrobackyard.com/auroras/Source snippet
A Beginner's Guide to Seeing & Photographing AurorasAccording to the Canadian Space Agency, auroras are most often seen after dusk and be...
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Source: mtu.edu
Link: https://www.mtu.edu/tour/copper-country/northern-lights/Source snippet
Michigan Technological UniversityWhat are the Northern Lights (Aurora Borealis)?The northern lights surprise stargazers by appearing in m...
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Source: nhm.ac.uk
Link: https://www.nhm.ac.uk/discover/what-are-the-northern-lights-aurora-borealis-causes-explained.html -
Source: instagram.com
Link: https://www.instagram.com/reel/DZtepUBMU9F/Source snippet
can generate synchronized, localized sounds like clapping, hissing, or crackling just above the ground.While the aurora happens too high...
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Source: youtube.com
Link: https://www.youtube.com/watch?v=4PXu2SnG4pkSource snippet
Written in the Sky: Aurora Borealis ExplainedThe aurora borealis, or the northern lights, are one of nature's most mysterious displays. I...
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Source: lightsoverlapland.com
Title: The lights can stretch across the horizon and change shapes or colors,
Link: https://lightsoverlapland.com/the-science-behind-auroras-how-the-northern-lights-are-formed/Source snippet
The Science Behind Auroras - How the Northern Lights Are...3 Mar 2025 — The aurora often appears as glowing arcs, rays, or curtains in t...
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Source: youtube.com
Title: Northern Lights! ISS Captures Green Auroras From SPACE
Link: https://www.youtube.com/watch?v=2oVvMO0pgJYSource snippet
Aurora mistaken for ufo lights UFOS SEEN IN NORTHERN LIGHTS?! 🛸 The Proof Is Out There | #Shorts | History HISTORY...
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Source: instagram.com
Title: Aurora can change its shape in less than a second
Link: https://www.instagram.com/p/DTAdKojjBcy/Source snippet
The luminous curtains, arcs, and “dances” of the northern lights are created because Earth's magnetic field is constantly in motion. When...
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Source: facebook.com
Link: https://www.facebook.com/CanadianSpaceAgency/posts/green-red-blue-aurora-borealis-are-a-spectacular-colourful-display-of-light-you-/911906090973626/Source snippet
n Earth's atmosphere ✨ the altitude where the aurora occurs ✨...Read more...
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Source: auroraiceland.uk
Link: https://www.auroraiceland.uk/aurora-types/Source snippet
What do the northern lights (aurora borealis) look like?During strong auroras the curtains can move very quickly, forming extensive curve...
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