Could a Balloon Explain the Climbing Ellipsoid?

Introduction

The curious details of the 24 April 1949 sighting near Arrey, New Mexico — where Charles B. Moore and four Navy men tracked what they described as a rapidly moving, whitish ellipsoid that climbed in elevation — have sparked competing explanations over decades. Moore’s account has been cited in UFO literature as a potentially controlled object, in part because of the reported upward change in elevation late in the sighting and his background as a balloon expert who insisted it could not have been a simple balloon. However, the plausibility of conventional, prosaic explanations has been debated, with critics questioning assumptions about speed, distance and perception, and proposing alternative interpretations rooted in atmospheric optics and observational error rather than exotic craft. This page surveys the major competing explanations for the climbing ellipsoid and what each account hinges on. [ufologie.patrickgross.org]ufologie.patrickgross.orgufo - UFOs at close sight: Arrey, New Mexico, April 24, 1949…Published: April 24, 1949

The Reported Motion Problem

A central dispute in interpreting the Arrey observation is whether the object’s apparent motion — especially the upward change in elevation near the end of the sighting — necessarily implies powered or controlled flight.

• Moore’s account places the object initially drifting rapidly eastward with an angular velocity of about 5° per second as seen through a 25× theodolite, then maintaining roughly constant azimuth while the elevation increased from about 25° to 29°, over an observation of about 60 seconds. If the object were distant and very large, this could imply extremely high speeds and an abrupt upward change that seem incompatible with known meteorological or conventional aircraft dynamics. [ufologie.patrickgross.org]ufologie.patrickgross.orgFor the US Air Force who conducted ProjectUFOs at close sight: Project Blue Book unexplained cases summaries with witnesses names, 1949PROJECT BLUE BOOK UNEXPLAINED CASES SUMMARIE…
• Distance and speed assumptions drive this interpretation. The report estimated the object possibly to be very far away — Moore speculated ~300 000 ft altitude under the assumption of escape-velocity motion — but this distance is derived from angular measurements without corroborating range data. Distance uncertainty multiplies into speed estimates: if the object were nearer, its linear speed would be far lower, potentially consistent with mundane objects like aircraft or balloons. Critics have noted that angular tracking alone cannot reliably fix range without ancillary instruments. [nicap.org]nicap.orgUF O ReportUFO ReportFebruary 15, 2015…Published: February 15, 2015

In other words, the climb might not be evidence of powered ascent at all if parallax and angular motion misrepresent the path because of distance and angular measurement limitations.

Conventional Explanations

Several sceptical explanations have been proposed to account for the climbing ellipsoid without invoking controlled flight or unidentified crafts.

Balloon Misidentification

Given the context of the observation — a balloon-release crew tracking small pibal balloons — one leading sceptical interpretation is that Moore and his colleagues simply misidentified another balloon or similar aerial object.

• High‑altitude balloons, including large research types like Skyhook clusters, were operating in the region and can appear as small, distant ellipsoidal shapes depending on lighting and viewing angle. A partially inflated skyhook cluster, observed at a long range and viewed through an optical instrument, could present an unfamiliar apparent shape. [ufologie.patrickgross.org]ufologie.patrickgross.orgufo - UFOs at close sight: Arrey, New Mexico, April 24, 1949…Published: April 24, 1949
• Without independent range data, it is plausible that the observers were tracking an unrelated balloon at a different altitude or simply misjudging size and motion — a common source of misinterpretation in aerial sightings, as identification studies of UFO reports note that balloons account for a significant share of identifiable misidentifications. [Wikipedia]WikipediaIdentification studies of UFOsIdentification studies of UFOs

Moore resisted the balloon explanation because of his expertise, but critics argue that even experts can misidentify distant aerial objects when range and perspective cues are poor.

Optical and Atmospheric Phenomena

An alternative class of explanations invokes optical effects that can distort apparent position and motion.

• Mirages and atypical refraction: Under certain conditions, layers of air at different temperatures can refract light, producing displaced or distorted images of distant objects or even false images where none exist. In hot, clear desert air above a surface, superior or Fata Morgana mirages can lift the apparent position of an object in the sky, making it appear to climb or change course without any actual motion. Atmospheric optics texts describe how such refraction can mimic motion or elevation change when the layers of air bend light rays unpredictably. [Wikipedia]WikipediaJune 9, 2002 — A mirage is a naturally-occurring optical phenomenon in which light rays bend via refraction to produce a displaced image…Published: June 9, 2002
• Such effects have been proposed by sceptics in other UFO cases to explain anomalous apparent motion without recourse to exotic technology. Although there is no direct evidence that a superior mirage occurred above Arrey on that day, the basic physics shows it is possible for refractive gradients to produce illusions of motion or position change that can confound observers tracking an object against a uniform sky.

Meteor or Transient Atmospheric Events

Some investigators outside mainstream scepticism have considered transient atmospheric or astronomical phenomena.

• Skipping meteors: Rarely, a meteor entering at a shallow angle can ‘graze’ the atmosphere and be deflected back into space. This path might appear as a curved or climbing trajectory from a ground viewpoint. However, such phenomena typically leave a visible trail from atmospheric ionisation — a trail Moore’s crew explicitly reported as absent — and last only seconds rather than the ~60 seconds noted. [UFO Magazine Archive]ufomagazines.comUFO Magazine Archive JUST CAUSE — Just CauseUFO Magazine ArchiveJUST CAUSE — Just Cause - New Series | UFO Magazine Archive…
• Meteor misidentification in general can be an issue in UFO reports, though such events usually exhibit rapid, bright motion with distinct characteristics (e.g. streaks) that differ from Moore’s description. The lack of a trail and duration of observation make a simple meteor explanation difficult, but the absence of independent instrumentation leaves the trail qualitative.

Conventional Interpretations vs. Unresolved Details

Supporters of a conventional account point to known pitfalls in aerial observation: humans are notoriously poor at judging distance and speed of distant targets against a featureless sky; optical illusions and atmospheric effects can bend apparent trajectories; and the record of UF­O sightings suggests many previously inexplicable objects were later matched to mundane causes once radar, photographic data, or range information was available. Misidentifications of balloons, aircraft, or refracted images form a large portion of identification studies. [Wikipedia]WikipediaIdentification studies of UFOsIdentification studies of UFOs

However, Moore himself and some UFO researchers maintain that standard explanations fall short in this case because:

The unresolved nature of these data points — particularly the lack of corroborative radar, photographic range estimates, or ancillary instrument logs — means that while conventional explanations remain plausible and sometimes preferred by sceptics, definitive resolution within the historical record is elusive.

Evaluating the Competing Narratives

At the heart of the debate is the tension between experiential testimony — Moore’s own expert observation — and the inherent uncertainty in visual tracking of distant objects. Balloon misidentification and atmospheric optical phenomena remain grounded in known physics and documented misperceptions, and are consistent with broader studies that show many UFO reports reduce to prosaic causes upon fuller evidence review. [Wikipedia]WikipediaJune 9, 2002 — A mirage is a naturally-occurring optical phenomenon in which light rays bend via refraction to produce a displaced image…Published: June 9, 2002

Conversely, critics of conventional explanations point out that without independent verification such as range or corroborating sensor data, any explanation remains speculative. The case persists as one of the Project Blue Book “Unidentified” files because no contemporaneous analysis definitively resolved it, leaving room for continued analysis of the specific angular motion and environmental conditions.

In summary, competing explanations for the climbing ellipsoid range from mundane (balloon misidentification and optical illusions) to unresolved motion that some see as challenging conventional accounts. Each interpretation hinges critically on assumptions about distance, motion projection, and atmospheric effects — factors that continue to complicate assessments of the 1949 Arrey sighting. [ufologie.patrickgross.org]ufologie.patrickgross.orgFor the US Air Force who conducted ProjectUFOs at close sight: Project Blue Book unexplained cases summaries with witnesses names, 1949PROJECT BLUE BOOK UNEXPLAINED CASES SUMMARIE…

eBay marketplace picks

Marketplace Samples

Example marketplace items related to this page. Use the search link to explore similar finds on eBay.

Example eBay listing

Desert Visit UFO Print – Vintage Atomic Age Mid Century Wall Art Poster

Search eBay.com: ufo poster

Browse similar on eBay.com

Example eBay listing

UFO Over Forest - Alien Spaceship, Sci-Fi Art Poster 18x24in

Search eBay.com: ufo poster

Browse similar on eBay.com

Example eBay listing

I Want To Believe Poster UFO Artwork Alien 16x24

Search eBay.com: ufo poster

Browse similar on eBay.com

Example eBay listing

The Bob Lazar Story UFO UAP Flying Saucer Area 51 Poster,Wall Art Print

Search eBay.com: ufo poster

Browse similar on eBay.com

Browse more on eBay.com

Example items shown for inspiration; availability and pricing can change. Branchoria may earn a commission if you purchase through outbound eBay links.

Endnotes

1. Source: ufologie.patrickgross.org
   Link: https://ufologie.patrickgross.org/htm/arrey49.htm
   Source snippet

   ufo - UFOs at close sight: Arrey, New Mexico, April 24, 1949...

   Published: April 24, 1949

2. Source: nicap.org
   Title: UF O Report
   Link: https://www.nicap.org/Good_Cases/490424arrey_dir.htm
   Source snippet

   UFO ReportFebruary 15, 2015...

   Published: February 15, 2015

3. Source: Wikipedia
   Title: Identification studies of UFOs
   Link: https://en.wikipedia.org/wiki/Identification_studies_of_UFOs

4. Source: Wikipedia
   Link: https://en.wikipedia.org/wiki/Mirage
   Source snippet

   June 9, 2002 — A mirage is a naturally-occurring optical phenomenon in which light rays bend via refraction to produce a displaced image...

   Published: June 9, 2002

5. Source: files.ncas.org
   Link: https://files.ncas.org/ufosymposium/mcdonald.html
   Source snippet

   UFO Symposium 1968: McDonald StatementMarch 12, 1968...

   Published: March 12, 1968

6. Source: nicap.org
   Title: UF O Report
   Link: https://www.nicap.org/490424arrey_dir.htm
   Source snippet

   Moore Case April 24, 1949 Arrey, New Mexico Updated: 20220201 Brad Sparks: April 24, 1949...

   Published: April 24, 1949

7. Source: nicap.org
   Title: Full NARA v
   Link: https://www.nicap.org/chronos/1949fullrep.htm
   Source snippet

   1949 ChronologyNovember 12, 2018 — `Image` `presents` ` ` 1949 UFO Chronology and the Grudge Report Image Not the actual cover, but the p...

   Published: November 12, 2018

8. Source: nicap.org
   Title: Primarily, the highly reflective, filmy envelopes would swell into
   Link: https://www.nicap.org/papers/exotic_balloons_carpenter.htm
   Source snippet

   UFO ReportJanuary 8, 2011 — BALLOONS AS UFO GENERATORS What distinctive characteristics of these unusual balloons made them possible culp...

   Published: January 8, 2011

9. Source: nicap.org
   Link: https://www.nicap.org/arrey.htm
   Source snippet

   n instruments > > In the late 1940s, supersonic wind tunnels were a scarce co...

10. Source: ufologie.patrickgross.org
    Title: For the US Air Force who conducted Project
    Link: https://ufologie.patrickgross.org/htm/bluebooku49.htm
    Source snippet

    UFOs at close sight: Project Blue Book unexplained cases summaries with [witnesses]({{ 'witnesses-e14d5f/' | relative_url }}) names, 1949PROJECT BLUE BOOK UNEXPLAINED CASES SUMMARIE...

11. Source: youtube.com
    Link: https://www.youtube.com/watch?v=1cO5K1np2Ig
    Source snippet

    Project Blue Book | Trailer | Watch On SBS On Demand...

12. Source: youtube.com
    Title: Project Blue Book | Trailer | Watch On SBS On Demand
    Link: https://www.youtube.com/watch?v=ApuwmZjHGu4
    Source snippet

    Weather balloon...

13. Source: ufomagazines.com
    Title: UFO Magazine Archive JUST CAUSE — Just Cause
    Link: https://www.ufomagazines.com/just-cause-new-series-just-cause-1995-12-no-46-new-series/
    Source snippet

    UFO Magazine ArchiveJUST CAUSE — Just Cause - New Series | UFO Magazine Archive...

14. Source: hyperphysics.phy-astr.gsu.edu
    Link: https://hyperphysics.phy-astr.gsu.edu/hbase/atmos/mirage.html
    Source snippet

    and other atomospheric optic phenomenaMirages are produced by atmospheric refraction and are mainly seen in settings where there are larg...

15. Source: youtube.com
    Link: https://www.youtube.com/watch?v=y6Euxa6-ndk
    Source snippet

    how they work! From simple water on the road to...Mirages - how they work! From simple water on the road to spectacular illusions...

Additional References

1. Source: britannica.com
   Link: https://www.britannica.com/topic/mirage-optical-illusion
   Source snippet

   Encyclopedia BritannicaDesert, Refraction, MirageMirage, in optics, the deceptive appearance of a distant object or objects caused by the...

2. Source: byjus.com
   Link: https://byjus.com/physics/mirage/
   Source snippet

   Formation of MirageA mirage is an optical phenomenon in which a distant object appears to be present, even though it is not actually ther...

3. Source: eoas.ubc.ca
   Link: https://www.eoas.ubc.ca/courses/atsc113/sailing/met_concepts/10-met-local-conditions/10f-optical-phenomena/
   Source snippet

   PhenomenaMirages are created when light passes through air of different temperatures. Two types of mirages are inferior and superior. Inf...

4. Source: cloudatlas.wmo.int
   Link: https://cloudatlas.wmo.int/mirage.html
   Source snippet

   wmo.intMirageDefinition: Mirage: An optical phenomenon consisting mainly of images of distant objects. These may be steady or wavering, s...

5. Source: facebook.com
   Link: https://www.facebook.com/ABCNews/posts/ufos-or-the-notion-of-them-have-been-around-a-long-time-heres-a-look-at-how-the-/1371436954843181/

6. Source: researchgate.net
   Title: 366450740 Did Monge really explain inferior mirages
   Link: https://www.researchgate.net/publication/366450740_Did_Monge_really_explain_inferior_mirages
   Source snippet

   (PDF) Did Monge really explain inferior mirages?20 Dec 2022 — He did not discover inferior mirages; they were known to sailors before 168...

7. Source: isgp-studies.com
   Title: ‘Have we visitors from Space?’ | Time magazine
   Link: https://www.isgp-studies.com/misc/UFOs/press-reports/1952-04-07-have-we-had-visitors-from-outer-space
   Source snippet

   The astronomer vouches for the approximate accuracy of his observations and computations. He determined that the object was not less than...

8. Source: noufors.com
   Title: It had a length of about.02 degrees subtended
   Link: https://noufors.com/maneuvering_elliptical_ufo_seen_by_trained_observers_at_White_Sands_Proving_Ground.html
   Source snippet

   Maneuvering elliptical UFO seen by trained observers at White Sands Proving GroundApril 24, 1949 — Date: April 24, 1949 Location: White S...

   Published: April 24, 1949

9. Source: ufodays.net
   Title: Early Birds – UFO Days and UFO Stories
   Link: https://ufodays.net/2020/04/03/early-birds/
   Source snippet

   April 3, 2020 — His close friend and colleague, Professor Charles Moore of the New Mexico Institute of Mining and Technology was one of t...

   Published: April 3, 2020

10. Source: isaackoi.com
    Title: This incident is Case 66 in Isaac Ko
    Link: https://www.isaackoi.com/ufo/19490424-white-sands-sighting.html
    Source snippet

    1949.0424 White Sands sightingApril 24, 1949 — 1949.0424 WHITE SANDS SIGHTING On 24 April 1949, there was a sighting at White Sands, New...

    Published: April 24, 1949