THE PALOMAR LIGHTS — Digger №01 cover. Nine glowing point sources of light beam down toward the silhouette of the Palomar Observatory dome at twilight. Tagline: Something was in our sky — before we put anything there. By @PhillyHarper. A True Story.

Prologue

The Mountain
Leaflet No. 244, July 1949 — 'A New Celestial Camera Surveys the Universe' by Alice Beach, Astronomical Society of the Pacific. Click to read the original at NASA ADS.
1949 USGS Santa Ana 1:250,000 topographic quadrangle.
PALOMAR OBSERVATORY
200-inch Hale · 48-inch Schmidt
San Diego County, California. Five thousand five hundred feet up, on a forested ridge in the Cleveland National Forest, sits the new 200-inch Hale telescope — the largest ever built.
U.S. Geological Survey, Santa Ana sheet, 1:250,000 — surveyed 1949.
Comic-style illustration of Palomar Observatory at twilight, 1950. A truck climbs the winding mountain road toward the silhouetted dome.
Palomar Mountain, California.
November 1949.
Five thousand feet above the orange groves and the Navy airfields of San Diego County, the most ambitious map of the sky ever attempted is about to begin.
The Monastery at Palomar Observatory — astronomers' communal dining and lodging building at dusk, November 1949.
George Abell is a graduate student. This is his first job in astronomy — observer on the sky survey. From these plates, he will discover 2,712 galaxy clusters. But tonight, he just needs clear skies.
Split frame: Abell loading the red-sensitive 103a-E plate (left, red light) and the blue-sensitive 103a-O plate (right, blue light) into the Schmidt telescope
Each field is photographed twice. First a red-sensitive plate — fifty minutes. Then a blue plate — twelve minutes. Two portraits of the same stars, in two colors of light, taken minutes apart.
Split screen: George Abell at the guide telescope controls on the left in his bomber jacket, the crosshair view through the eyepiece showing a centered star on the right
For each exposure, someone must sit at the guide telescope and keep a star centered by hand. Fifty minutes. In the cold. Night after night, for seven years.
The plate dumbwaiter at Palomar Observatory — wooden mechanical lift carrying the freshly-exposed glass plate XE 325 from the dome down to the darkroom below.
After exposure, the plate rides a dumbwaiter to the darkroom. Development in absolute blackness. No safelights — the emulsion sees every color of light.
The plate storage room at Palomar Observatory — floor-to-ceiling wooden cabinets holding glass photographic plates in paper sleeves.
1,620 exposures will be taken. Only 935 pairs will pass inspection. The survivors go into drawers. They will sleep there for decades.
Plate XE 325 and its blue companion plate from POSS-I, lying in storage. Both labelled XE 325. The red plate carries an anomaly — nine pinpoints of light — that no one has yet noticed.
An anomaly on plate XE 325, and its blue companion. Can you see it? No one detects it at the time. The plates go into the drawer.
THE ATOMIC FLASH — 5:15 AM Palomar Mountain at dawn. The dome is closed, the night's work done. On the northeast horizon — a sudden bloom of white-orange light. An atomic flash from the Nevada Test Site, 275 miles away. For a moment, the fir trees cast sharp shadows. Then darkness returns. The sky above is still full of stars.
And in the desert to the northeast, the United States is splitting atoms. The flash from Yucca Flat is visible from the mountain. The astronomers barely notice. They've been watching the sky all night — but looking the other way.
The plates sleep in their drawers
70 years later. 2017.

Chapter 1

The Vanishing
Three-panel montage of Beatriz Villarroel's research journey: Uppsala University in winter snow; ETH Zurich modern glass laboratory; Instituto de Astrofísica de Canarias — white telescope domes above the clouds on Tenerife.
Uppsala  ·  Zurich  ·  The Canary Islands
Beatriz Villarroel at the whiteboard in her NORDITA office in Stockholm, deep in thought. She is sketching a diagram: a star with an arrow pointing into a black hole — no supernova, no explosion, just vanished.
Dr. Beatriz Villarroel. A Swedish physicist turned astronomer. From her laboratory at NORDITA in Stockholm, she studies the violent hearts of galaxies — quasars, black holes, things that burn.
A massive star at the moment of supernova explosion — a blinding shockwave bursting outward in concentric rings of fire and electric blue light, debris and gas flung across deep space.
If a massive star collapses directly into a black hole — no supernova, no explosion — it would simply vanish from the record. Has anyone actually looked?
The loud death.
Most massive stars die loud — a supernova so bright it can be seen across galaxies. Light. Heat. A funeral with fireworks.
A massive star at the moment of failed supernova — being drawn inward toward a perfect black event horizon at its center. Light bends around the edge into an Einstein ring. The star's outer layers are sucked in, not blown out.
The quiet death.
But what if one died quiet? Collapsed into a black hole without a flash? It would simply — vanish.
Dr. Beatriz Villarroel sitting in contemplation in her NORDITA office in Stockholm. The idea has crystallised — now she has to commit to it.
She proposes a research project: cross-match the sky as it was photographed in the 1950s with the sky as we see it today — and find the stars that have disappeared into black holes. She calls it VASCO. Vanishing and Appearing Sources during a Century of Observations.
Split-frame comparison: a 1950s POSS-I red glass plate on the left with a single bright source circled in red ink, juxtaposed with a modern Pan-STARRS digital image on the right showing the same patch of sky — the circled source is gone.
600 million objects.
She writes software to compare each speck of light in the 1950s sky with the sky we see today — looking for the ones that aren't there anymore.
Beatriz Villarroel at her desk at the Instituto de Astrofísica de Canarias in Tenerife, late February 2020. On her screen: the digitized scan of Plate XE 325 from Palomar.
Tenerife. Feb 2020.
On her screen: Plate XE 325 — exposed at Palomar on April 12, 1950. The plate that went into the drawer.
Beatriz Villarroel at her desk in Tenerife, leaning forward at her screen with her hand to her mouth. On the monitor: nine bright pinpoints of light clustered together on a 1950s photographic plate. Her office mate looks on. The moment of discovery.
Villarroel I was sitting there with my office mate in Spain... and I was just wondering, "So what is it? What are we seeing?" — Penn State, "My Personal Journey Through the Unknown"
She sees them. Nine pinpoints of light. Clustered together on a single 1950s plate.
The actual blink comparison from Plate XE 325. Left: the red exposure showing nine bright pinpoint transients clustered in a small patch of sky. Right: the blue companion plate taken thirty minutes earlier — the exact same patch, but the nine sources are gone. The visual evidence at the heart of the discovery.
Exhibit A — Plate XE 325
Nine sources, clustered in a single patch of sky. Appearing within half an hour on a fifty-minute red exposure. Absent on the blue companion plate taken half an hour earlier. Absent on the next red plate of the same field, six days later. Absent in every modern survey. Gone forever.
Beatriz Villarroel turning back over her shoulder to her office mate, animated, the moment of 'we've found something'. The monitor behind her still glows with the nine pinpoints.
Villarroel What are we looking at? Nine sources of light, all there within half an hour — and then gone. What are they?
Beatriz Villarroel at a whiteboard, ruling out conventional explanations for the nine transients on Plate XE 325. She demonstrates that moving objects (planes, asteroids, satellites) would leave streaks across a 50-minute exposure, not the round pinpoint dots actually observed.
Beatriz Villarroel at a whiteboard, working out the probability that the nine transients on Plate XE 325 could be nine simultaneous supernovae. The calculation arrives at one in ten to the fifty-fourth — effectively zero. Conclusion: these are not the vanishing stars she came looking for.
JUNE 2021 — THE DISCOVERY IS PUBLISHED.
First page of Villarroel et al. 2021, 'Exploring nine simultaneously occurring transients on April 12th 1950', published in Scientific Reports, June 2021.
Read the original paper at nature.com →
THE EVIDENCE
Nine point sources. Nine moments of light, photographed on a single mountain on a single night. Here they are, one by one. Real plate cutouts.
Plate cutout from POSS-I red plate XE 325 showing transient #1, circled in white, on a dark sky field. Other faint stars are visible.
TRANSIENT 1
Plate cutout showing transients #2 and #3 — paired green circles overlapping, marking two adjacent point sources on the dark sky field.
TRANSIENTS 2 & 3
Plate cutout showing transients #4, #5, and #6 — three green circles spread vertically across the dark sky field.
TRANSIENTS 4, 5, 6
Plate cutout showing transients #7 and #8 — two overlapping white circles marking a paired flash on the dark sky field.
TRANSIENTS 7 & 8
Plate cutout showing transient #9 — a single green circle marking one isolated point source on the dark sky field, with a few brighter reference stars visible above.
TRANSIENT 9
Each one observed for fifty minutes. Each one gone in the next exposure. None of them visible in the modern sky.
— Cutouts from Villarroel et al. (2021), Scientific Reports, CC BY 4.0
From the paper.
Page 6 of Villarroel et al. 2021 with three key passages highlighted in yellow: 'no satellites are known to have existed prior to the Soviet-made Sputnik in 1957, seven years after the appearance of the transients'; '...more likely explained by a Solar system satellite of artificial or natural origin'; and the closing line calling the mystery a 'detective story worth the attention of the astronomical community.'
Download the paper (PDF)  ·  View on nature.com
"No satellites are known to have existed prior to the Soviet-made Sputnik in 1957 — seven years after the appearance of the transients in the 1950 POSS-I image."
"…more likely explained by a Solar system satellite of artificial or natural origin."
"We believe the mystery of the simultaneous transients is a detective story worth of the attention of the astronomical community."
— Villarroel et al. (2021), Scientific Reports, p. 6. Highlights added.
Then comes the response.
Scientific American  ·  2025
Did Astronomers Photograph UFOs Orbiting Earth in the 1950s?
"It looks like we are dealing with something that looks pretty artificial, in a time when there shouldn't be anything there." — Beatriz Villarroel
SPACE.com  ·  SCIENCE
Were unexplained flashes of light in 70-year-old sky surveys caused by UFOs or nuclear testing? Why not both, researchers say.
▶
"VERY EXCITING TIME"  ·  EP. 79
November 2025  ·  with Beatriz Villarroel
"I cannot find any other consistent explanation other than that we are looking at something artificial before Sputnik 1."
"For me, this looks technological — but I may be wrong."
IFLScience
Mystery Of Odd Flashes Documented In Sky Before First Ever Satellite Was Launched Gets Even Odder
Not everyone is convinced.
"The profiles of the transients are too 'pointy' to be above-atmosphere photo-detections. Unless they are very fast, bright flashes — we're talking a tenth of a second."
"There'd be nobody happier than me if they are right. But I suspect they are wrong."
— Dr. Nigel Hambly, Royal Observatory Edinburgh
in Supercluster
Live Science
"No easy explanation": Scientists are debating a 70-year-old UFO mystery as new images come to light.
Scientific American
"Even if this turns out to be some new physical phenomenon, that's super exciting. That would mean we have discovered something new that nobody knew existed."
— Beatriz Villarroel
The Guardian
"It only takes one to be real — and it changes humanity for ever."
— Beatriz Villarroel
The paper has done what good science does: it has given the world something it cannot easily explain — and forced everyone, supporters and skeptics alike, to look harder.
After the paper, the search opens up.
She recruits thirty volunteers from six countries — not astronomers, just careful eyes — and teaches them to look. Together they examine fifteen thousand image pairs. The nine on Plate XE 325 weren't a fluke. The catalog grows.
Beatriz Villarroel on a Zoom-style video conference with citizen-science volunteers from six countries. She is teaching them to spot anomalies on POSS-I photographic plates.
QUIET MOMENT — NORDITA at night Villarroel alone in her office at NORDITA. Night. Stockholm city lights through the window. She's looking at the screen but not really seeing it. Thinking.
Villarroel Even if this turns out to be some new physical phenomenon, that's super exciting. That would mean we have discovered something new that nobody knew existed.
"It only takes one to be real and it changes humanity for ever." — The Guardian
A bold claim is not enough. The science has to hold.

Chapter 2

The Shadow Test
First, the critics.
Dr. Nigel Hambly walking across Bristo Square in front of the iconic dome of McEwan Hall, University of Edinburgh, at dusk. The sandstone dome and copper-green roof of McEwan Hall are lit by a low golden sun.
Edinburgh.
Dr. Nigel Hambly. Royal Observatory Edinburgh. He has a hypothesis — and he can prove it without ever looking at the sky.
The SuperCOSMOS plate-measuring machine at the Royal Observatory Edinburgh — a precision instrument used to digitize historical glass photographic plates from the 1950s sky surveys.
Frame 1  ·  The Scanner
SuperCOSMOS, Edinburgh. The machine that turned the 1950s sky into pixels. Almost everyone who searches the POSS-I archive is using its output.
The glass duplicate plates at the Royal Observatory Edinburgh — second-generation contact copies of the original POSS-I plates. Edinburgh's SuperCOSMOS only ever scanned these duplicates; the originals remain at Palomar.
Frame 2  ·  The Copies
But Edinburgh never scanned the originals. They scanned glass duplicates. The originals still sleep in their drawers at Palomar.
Macro close-up of a glass POSS-I duplicate plate, lit at a raking angle. Dust grains, emulsion pinholes, fibres and small contamination spots are visible scattered across the surface — at this resolution, indistinguishable from the recorded stars.
Hambly's argument: some of these "transients" may not be sky at all. They are dust, emulsion holes, fibres — introduced when the originals were copied to glass, or scratched in by decades of handling. Picked up by the scanner. Catalogued as stars.
Dr. Nigel Hambly in his laboratory at the Royal Observatory Edinburgh, looking directly at the camera. He wants the VASCO team to be right but he suspects they are wrong.
"There'd be nobody happier than me if they are right. But I suspect they are wrong."
— Dr. Nigel Hambly,
Royal Observatory Edinburgh
A two-scene 16:9 panel. Left: Beatriz Villarroel at her desk on the phone, opening one of many letters from press and colleagues stacked across her desk. Right: moments later in the same office, she has turned to her colleague, palm raised, animated — proposing the next move.
Tenerife. The week the paper landed.
Villarroel We need more data. Either we shore this up — or we put the artifact problem to bed for good.
HER ANSWER — A TEST THAT DOES NOT NEED CLEAN PLATES.
Whether the plates are pristine or filthy, geometry is geometry. By now Villarroel's catalogue has grown well beyond the original nine — over 100,000 short-lived transients picked out of the POSS-I plates. She proposes a test that contamination cannot fake.

If the transients are sunlight glinting off objects in orbit, they must obey the Sun. When Earth's shadow falls across an orbit, anything reflective inside that shadow has no light available to reflect, so it goes dark. So with a hundred thousand candidate transients in her dataset, fewer of them should land inside Earth's shadow than pure chance would predict.
SUN EARTH'S SHADOW PALOMAR GLINT
Sun on the left  ·  Earth in the middle  ·  Satellite in orbit  ·  Palomar watching
The result  ·  published 2025.

THE SHADOW IS EMPTY.

Two Mollweide all-sky maps. Top: every transient candidate spread across the whole sky. Bottom: the subset that fall inside the strip of sky where Earth's shadow lies — far fewer dots.
Villarroel & Bruehl, PASP 137, 104504 →
Expected from geometry
1.15 %
Observed in shadow
0.328 %
Statistical significance
21.9 σ

In plain language: out of every thousand transients, you'd expect about eleven to land inside Earth's shadow by chance. Only three actually do. More than three times fewer than the sky should contain.

The 21.9 σ figure is statistician-speak for this is not a coincidence. The chance of getting a deficit this big from random data is, for all practical purposes, zero.

The conclusion is hard to escape: these flashes are real, reflective objects orbiting the Earth.

** As it happens, this result was independently replicated a year later by Doherty et al. (2026).
Back to Edinburgh.
Dr. Nigel Hambly in his office at the Royal Observatory Edinburgh, looking down at a printout showing the all-sky shadow-test scatter plot. The spires of Edinburgh and a deep purple sky fill the stone-framed window behind him.
"I don't have an explanation for that."
— Dr. Nigel Hambly,
Royal Observatory Edinburgh
Read the source interview at Supercluster →

Chapter 3

The Bomb and the Lights
A four-panel 1950s montage. Top left: a mushroom cloud rises over the Nevada desert as soldiers in trenches watch — 'Operation Ranger, January 1951.' Top right: the 48-inch Palomar dome under a star-filled sky. Middle: two newspaper strips — 'ATOMIC TESTS CONTINUE IN NEVADA' and 'PALOMAR MAPS THE HEAVENS.' Bottom: well-dressed couples on a Las Vegas hotel rooftop at dawn, drinks in hand, watching a distant blast on the horizon — the 'Atomic Cocktail' era.
A 1950s comic-style night scene: a vast mushroom cloud rising over the Nevada desert, glowing red and orange against a starlit sky. A bright streak in the upper right hints at a transient flash.
Picture-in-picture inset: Beatriz Villarroel at her desk, thinking — connecting the test dates with the transient counts in her head.
She'd already noticed something.
The plates with the most transients seemed to be the ones taken close to the days the United States detonated atomic weapons. A hunch. She needed help to test it.
A two-scene 16:9 panel. Left: Dr. Stephen Bruehl in his Vanderbilt office, pulling a hard drive marked 'TRANSIENT DATA' from a padded mailer; printouts from Villarroel scattered across the desk. Right: moments later, the same office, Bruehl at his monitor running the statistical analysis on the data.
Nashville. Vanderbilt University.
Dr. Stephen Bruehl. Clinical psychologist. He studies pain — the fuzzy, noisy human kind. Villarroel sends him a drive: 2,718 nights of POSS-I transients. She wants him to test her hunch.
HE PUTS HER HUNCH UNDER A MICROSCOPE.
A dynamic comic-book montage of Stephen Bruehl analysing the transient data. Top: a close-up of his wide eyes behind glasses surrounded by floating equations and Greek letters. Bottom-left: Bruehl at his computer in his white lab coat. Bottom-right: a monitor showing a heartbeat-style line that spikes above four mushroom-cloud icons along the x-axis labelled TRANSIENT ACTIVITY.
HER HUNCH WAS RIGHT.
On a typical Palomar night with no nearby test, transients show up on about 11% of nights.
The day after a test, that jumps to 18.5%.
Same instrument. Same plates. Same observers. The bombs are the only variable.
THE SHADOW FILTER
Then they ran it again — but this time, only on the transients that had passed Villarroel's shadow test. The ones that need the Sun. The ones that look like real, reflective objects.
The signal more than doubles.
IRR = 3.527  ·  95% CI 2.80–4.45  ·  p < 0.0001
Bruehl & Villarroel, Scientific Reports 15, 34125 →
SUN EARTH'S SHADOW PALOMAR GLINT
Side-profile portrait of Dr. Stephen Bruehl in his lab coat, hand to chin in thought, against a deep blue halftone background.
"The magnitude of the association between these flashes of light and nuclear tests was surprising — as was the very specific time at which they most often occurred: namely, the day after a test."
— Dr. Stephen Bruehl,
Vanderbilt University Medical Center
ONE DATE KEPT TURNING UP.
While searching the plates, Villarroel and her team kept finding transients on a particular night — including a triple flash that vanished within fifty minutes on a single plate. The plate was exposed at Palomar, 08:52 UT, July 19 1952.
“Apparently, in 1952, during two consecutive weekends — on the 19th of July and the 27th of July — there was the most famous UFO sighting probably during the last hundred years over Washington. And it was so big that even the US Air Force had to make a special press conference.”
— Dr. Beatriz Villarroel, Penn State chapter, "My Personal Journey Through the Unknown"
Washington National Airport, the radar room, 11:40 PM, Saturday July 19 1952. Two air traffic controllers — Edward Nugent at the scope, his supervisor Harry Barnes leaning over his shoulder — stare at a green CRT showing a map of the eastern US. Seven orange blips cluster over Washington DC. Cigarette smoke curls between them.
SATURDAY NIGHT · JULY 19, 1952
Nugent Here's a fleet of flying saucers for you.
A two-scene 16:9 panel. Left: Senior controller Harry Barnes in profile, face lit green by the radar scope, watching the cluster of blips. Right: Airman William Brady in the Andrews tower, lit orange, eyes wide, watching what he describes as a ball of fire trailing a tail outside his window.
Barnes · National Airport We knew immediately that a very strange situation existed… their movements were completely radical compared to those of ordinary aircraft.
Airman Brady · Andrews AFB An object which appeared to be like an orange ball of fire, trailing a tail… unlike anything I had ever seen before.
Quotes via Project Blue Book / E.J. Ruppelt, The Report on Unidentified Flying Objects (1956). Wikipedia summary →
The cockpit of an F-94 Starfire at night. Lt. William Patterson, helmet and oxygen mask on, eyes wide, hand on the stick. Through the canopy: three bright white glows hovering. Cockpit instruments lit green and red.
Albert Chop · USAF Press Lt. Patterson radioed for instructions when the objects surrounded his fighter. Nobody answered. Because we didn’t know what to tell him.
A 1952 news-strip comic from the National Archives, titled 'Saucers over Washington, D.C.'. Multiple flying saucers drawn above the U.S. Capitol dome. Below: Captain C.S. Pierman in his airliner cockpit ('There's one... and there it goes!') and Harry Barnes at the radar describing the objects accelerating from 130 mph to nearly 500 mph in under 4 seconds.
Contemporary 1952 news comic, "Saucers Over Washington, D.C."
U.S. National Archives, public domain. The Air Force did not permit photographs of the actual radar scopes that night.
Inside the Palomar dome, July 1952. The 48-inch Schmidt camera open to a starlit sky, dark mountains visible through the dome slit. A lone observer in red light at the control console — calm, focused, working through a 50-minute exposure.
Palomar Mountain, California.
The same night.
2,500 miles west. Same sky. The 48-inch Schmidt camera was running a fifty-minute red exposure. The observer had no radio to Washington. He didn't know what had just been photographed.
A hand slides a glass photographic plate into a wooden archive drawer. Faintly visible on the plate: nine bright pinpoints clustered in a triangle. The drawer is one of hundreds in a wall of identical drawers. The image will sit there, unread, for seven decades.
No one noticed. No one would — for seventy years.
THE SAME NIGHT, AT 08:52 UT.
Three pinpoints of light. One photographic plate. Vanished within fifty minutes. The Palomar archive logged them. The newspapers logged what flew over the White House later that night. Same date.
Figure 2 from Solano, Villarroel et al. (2024). Four 3×3 arcmin POSS-I plate cutouts of the same patch of sky. Top-left: 19 July 1952 8:52 UT, red plate, showing the triple transient just above center. Top-right: same field, blue plate 56 minutes later — gone. Bottom-left: 14 September 1952 red plate — still gone. Bottom-right: 14 September 1952 blue plate — still gone.
Top-left: the triple flash, just above center. Top-right: 56 minutes later. Gone. Bottom row: two months later. Still gone.
Solano, Villarroel et al. — "A bright triple transient that vanished within 50 minutes" →
MNRAS 527, 6312 (2024). Figure 2.
TEN DAYS LATER · THE PENTAGON

Major General John Samford addresses the press.

July 29, 1952 · Largest Pentagon press conference since World War II
“We have received and analyzed reports from credible observers of relatively incredible things.”
— Maj. Gen. John A. Samford, USAF Director of Intelligence · July 29, 1952
The full front page of The Evening Star, Washington D.C., Tuesday July 29, 1952. Lead stories cover the Democratic convention loyalty rule and Iran. Lower right: a story headlined 'Those Flying Things May Prove To Be Only Weather Balloons,' the Air Force's response to the Washington UFO sightings of the previous weekend.
THE EVENING STAR · WASHINGTON, D.C.
JULY 29, 1952
THE SAME EVENING’S PAPER.
Close-up clipping of the Evening Star front page, July 29 1952: the article headlined 'Those Flying Things May Prove To Be Only Weather Balloons' with the subhead 'New Unidentified Objects Sighted on Airport Radar Screen Today.'
The official explanation: temperature inversions. Weather balloons. Misidentified stars. Nothing to see.
Source: Library of Congress, Chronicling America → Public domain.

Epilogue

Where is the story now?
Black-and-white portrait of Brian Doherty, an independent researcher in Dallas, Texas.
INDEPENDENT REPLICATION
Brian Doherty
Dallas, Texas. Independent researcher.
Statistical analysis · data analytics.
No university, no lab, no funding. He pulled down the dataset, wrote his own code from scratch, and ran every test independently. The findings held up — both the nuclear-test correlation and the Earth-shadow deficit.
Brian Doherty's signed Replication Statement, dated January 19, 2026. He confirms that the Bruehl & Villarroel 2025 nuclear-test correlation holds (p < 0.0001) using negative binomial regression and permutation testing, and that the Earth shadow methodology from Villarroel et al.'s PASP paper also replicates.
Doherty (2026), arXiv:2604.00056 →
Code on GitHub →
Photograph of Ivo Busko, an independent researcher (formerly Space Telescope Science Institute) who replicated the transient detections in the Hamburg APPLAUSE archive.
ANOTHER ARCHIVE, ANOTHER CONTINENT
Ivo Busko
Independent researcher · formerly STScI
Hamburg APPLAUSE archive
Maybe it was only Palomar. Maybe one telescope, one mountain, one drawer of plates. Busko looked at a different archive entirely — the digitised plates from the Hamburg Observatory’s Schmidt camera, mid-1950s. He found the same narrow, star-like flashes. Different telescope. Different continent. Same signature.
Busko (2026), arXiv:2603.20407 →
"Searching for Fast Astronomical Transients in Archival Photographic Plates"
Photograph of Kevin Cann, an independent researcher with a US Navy reactor-operations background who has published on the geomagnetic-storm dependence of the POSS-I transients.
WHEN MAGNETIC STORMS HIT
Kevin Cann
Independent researcher
Former US Navy reactor operator (USS South Carolina)
Cann asked a different question: what happens when Earth’s magnetic field gets battered? He cross-referenced the transient dates with the geomagnetic Kp index. The flashes drop sharply during strong magnetic storms. Then, twenty-five to forty-five days later — once the field has calmed and the plasma has refilled — they surge back to roughly three times baseline.
A camera defect can’t care about Earth’s magnetic field. But something trapped in that field can.
Cann (2026), arXiv:2604.04950 →
"Geomagnetic storm suppression of photographic plate transient detections in the POSS-I archive"
THE STRONGEST CHALLENGE
The signal itself may be illusory.
Watters, Dominé, Little, Pratt & Knuth (2026)
Not every astronomer is convinced the underlying detections survive proper scrutiny. A reanalysis by the Watters team argues:
  • The Earth-shadow deficit disappears in their reanalysis.
  • The linear-cluster patterns are explained by ordinary catalogue stars at the survey edge.
  • The nuclear-test correlation vanishes once you normalise by which dates Palomar was actually observing.
Both sides agree on the raw photographic plates. They disagree about how to count what’s on them.
Watters et al. (2026), arXiv:2601.21946 →
"Critical Evaluation of Studies Alleging Evidence for Technosignatures in the POSS1-E Photographic Plates"
Hero portrait of Dr. Beatriz Villarroel, looking calmly toward the camera. Behind her: a faint composite of plate XE 325, a Palomar dome, and the night sky.
Villarroel I cannot find any other consistent explanation other than that we are looking at something artificial before Sputnik 1. For me, this looks technological. But I may be wrong.
"It's a Very Exciting Time" podcast, Episode 79 · November 2025 →
Want to go deeper into the story?

Appendix

Further Material
Villarroel presents her findings.

TEDx Zurich, 2023

Why we should search for alien artifacts.
DIGGER №01

A first edition is being printed.

Signed and numbered, ~150 copies. Production sketches, the full source bibliography, and an expanded interview with Beatriz Villarroel.

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END
Based on peer-reviewed research published 2020–2026.
All quotes attributed to their original sources.
The Palomar Lights — a story told in data, glass, and light.
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