Also, I don't think there would be "a" convincing photo for some skeptics.
I think you might be right. Maybe it's not people identified as skeptics who need to be convinced but a consensus of relevant scientists.
A single photo might not be convincing evidence in a context where quite a few such photos have been claimed to be firm evidence but have later been shown to be fakes. We know some people, for whatever reason, fake pictures of UFOs and want others to believe they are real alien spacecraft.
Adamski, Meier claimed their photos were real until the ends of their lives, some of their friends/ acquaintances corroborated their tales.
As far as I know their photos were not shown to have been faked solely from examination of the photos*, showing that this can be difficult. They share this with the Cottingley fairies.
External Quote:
Gardner and Doyle sought a second expert opinion from the photographic company Kodak. Several of the company's technicians examined the enhanced prints, and although they agreed with Snelling that the pictures "showed no signs of being faked", they concluded that "this could not be taken as conclusive evidence ... that they were authentic photographs of fairies".
(
https://en.wikipedia.org/wiki/Cottingley_Fairies Wikipedia, Cottingley Fairies).
"The Surgeon's Photograph" of the Loch Ness Monster was not shown to be a fake based on study of the photo
(Wikipedia
https://en.wikipedia.org/wiki/Loch_Ness_Monster#%22Surgeon's_photograph%22_(1934)).
Despite the unlikely claims made in all these cases, some people chose to believe the claimants and put great faith in the fact that "there were no signs of hoaxing", "no evidence of photographic manipulation", words to similar effect.
All the above hoaxes involved unmanipulated photographs of real scenes (though Adamski, Meier and surgeon Robert Wilson photographed small models in contexts where their size couldn't be judged).
Some people who claim to be involved in the serious study of UFO reports have accepted frankly rather silly photographs as possible evidence. They have not adequately tested that evidence; each new photo is presented as taking us closer to the truth even if a little consideration shows us they do not. These photos are sometimes eagerly (and initially uncritically) accepted by other UFO enthusiasts:
Crop of photo of Luis Elizondo's "Mothership" over Arad, Romania, 2022. Elizondo did not seem to wonder how a huge brightly-lit craft could be above a town of c. 145,000 people in broad daylight and not become a major news story- or why there was just one photo.
Romania, 2022 is not Romania in 1972.
Elizondo described it as a "mothership" (Threadreader website, 29 Oct 2024, John Greenwald Jr.
https://threadreaderapp.com/thread/1851316332416966933.html?utm_campaign=topunroll), i.e. a large craft carrying smaller craft, something for which there is no indication whatsoever in the photo.
The first use of that term in Ufology (using the term loosely) may have been by George Adamski, describing a craft he claimed to have seen over Palomar Gardens in 1946 and 1947 (though he might not have mentioned it before 1949, by which time UFOs were in vogue).
The Ufological term "mothership" was massively popularized by
Close Encounters of the Third Kind, 1977.
Elizondo adopts that fictional narrative: The UFO is apparently big, round, brightly-lit, so it's a mothership.
It is actually a reflection of a light fixture in an apartment window, thread
Elizondo's Romanian Non-Human Mothership Photo [Reflection of a Light Fixture]. Elizondo accepted his mistake, but this is a guy who claims to have studied (and perhaps have classified info about) UFOs for years.
Ron James, MUFON's Director Of Media Relations publicized a photo purportedly showing US troops with a flying saucer that had been shot down over central Oregon in 1955, thread
Ron James UFO crashed UFO pictures; cropped detail:
It didn't seem to occur to him that the troops (admittedly not very distinct) don't look like 1950s US soldiers. He didn't check.
Two wear jackboots (then practically a metaphor for oppressive regimes), two wear helmets with flared rears, nothing like the classic US M1 helmets of the era (portrayed in
The Day The Earth Stood Still,
MASH, ubiquitous in US Army/ USMC use from 1941-1985ish)
They're 1/35 "German Soldiers at Rest" figures, a 1984 kit of a WW2 subject from Japanese model producer Tamiya.
Leading figures on the UFO scene are sometimes persuaded of the reality of extraordinary things by remarkably poor evidence, and have been in the past, yet they ask others to draw important conclusions about reality, and our knowledge of the universe, based on this evidence.
In
the OP,
@Edward Current raised the example of the Chelyabinsk bolide of 2013.
No-one was expecting it, it was visible from any given location for maybe 20 seconds max**; it might have been frightening (even before its shockwave injured hundreds of people).
It was a rare event; "Russian meteor largest in a century",
Nature, February 2025, Geoff Brumfiel
https://www.nature.com/articles/nature.2013.12438; researchers at Imperial College London estimated
External Quote:
...that the frequency of airbursts from objects 20 metres (66 ft) across is about once in every 60 years.
(Wikipedia, Chelyabinsk meteor
https://en.wikipedia.org/wiki/Chelyabinsk_meteor).
Yet this 20-second, once-in-decades event was captured by multiple cameras.
In contrast, UFOs are reported on a daily basis and have been for the best part of 80 years.
The Center for UFO Studies, CUFOS
https://cufos.org/cufos-publications-databases/ufocat/ has compiled UFOCAT,
UFOCAT-2023 refers to a computer database of over 300,000 entries. In this total are over 192,000 primary UFO reports.
(This is the database used by Villarroel and Bruehl, 2025,
post #892 "Transients in the Palomar Observatory Sky Survey" thread.)
Let's say the majority of these are from 1947 on, 79 years (UFOCAT includes some pre-Arnold reports I think);
190,000 / 79 = approx. 2405 reports in an average year. Some will be reports by multiple people of the same thing, if we (rather generously) assume that the average sighting involves three people, all of whom report it, that's still over 800 individual events a year, more than 2 every day for 80 years.
But unlike the Chelyabinsk meteor, not one convincing UFO event has been captured by cameras from different viewpoints.
Cameras (on cellphones, various CCTV systems) have become much more widespread in the past 25 years, so maybe a lack of good photographic evidence from the 20th century is more understandable, but it's less so now.
Compelling evidence that extraterrestrial intelligence existed would be extraordinarily important. That it was visiting Earth even more so.
It is not unreasonable (I feel) to expect clear, testable evidence before concluding this.
A single photo might not be sufficient, particularly considering the long history of faked (and no demonstrably real) UFO pictures.
I guess there's the possibility that a real non-human artefact might visit Earth and be photographed by one person. But at the moment, it's hard to see how we could be sure that that one photograph was authentic. Doubt is the result of decades of fake photos and in some cases dishonest accounts, almost all of which have been championed by UFO enthusiasts. It's partly the fault of ufology, not some supposed scientific establishment, a military cover-up or skeptics.
Contact or surveillance might occur without ongoing photographic evidence.
I think that's hypothetically possible. We're not individually aware of reconnaissance satellites. An advanced ETI would presumably have better remote sensing, more miniaturised systems, better low-observable technologies.
The Duke of Wellington might not have been aware of a Canberra spyplane photographing Waterloo, but it's from his culture and only 140 years ahead. If an ETI had the ability to routinely visit Earth, and didn't want to be seen, maybe we wouldn't see it.
But if we can see huge flying triangles, craft with multiple bright lights and landed craft perched on legs in the fashion of
Eagle, we can photograph them, and might expect them to be occasionally caught by chance by video cameras like the Chelyabinsk meteor was.
Contact, as in receiving e.g. a radio signal, might be more likely. It is relatively cheap, and humans have had the ability to send signals over interstellar distances at the speed of light for some decades. No photography necessary. So far we've heard nothing.
In terms of
personal contact, I'm extremely skeptical of all such claims. It's a staple of science fiction and the fantasies of the contactees.
If it has happened, we have learned literally nothing useful from the ETI. No contactee or abductee has told us anything of practical use.
Some of what they have said damages public understanding of science (Adamski's Venusians) or is pernicious (Meier).
Barney and Betty Hill's complete account(s) is so bizarre that many retellings miss out pertinent details (rather dishonestly, I feel).
I guess I'm just trying to say that I don't think a photo or even a number of similar photos would convince skeptical scientists. Certainly not Trump making some declaration. In fact I think it would take something like a crashed vehicle that was transparently analyzed by a number of countries. Peer review.
Broadly agree. There might be little reason to trust the (unsupported) declarations of certain politicians!
I'm not sure that evaluating factual evidence on complex topics is a strong point of the current president.
In the event of substantial evidence (e.g. a recovered craft or artefact of some kind) formal peer review might not be necessary if some appropriate exterior/ independent people could confirm the initial findings. Some fossils, archaeological artefacts, items of e.g. foreign military hardware are found/ acquired/ observed and their existence accepted before peer-reviewed papers describe them in greater detail.
*A large part of Adamski's Venusian scout ship has a strong resemblance to a gas lantern lid as per my avatar, but the photographs themselves were not manipulated.
**The smoke trail persisted for much longer.