In 1835 a New York newspaper reported that life had been discovered on the Moon, including winged man-bats
Where the evidence lands: ContradictedThat in 1835 Sir John Herschel, using an enormous new telescope at the Cape of Good Hope, genuinely discovered abundant life on the Moon: vegetation, oceans, lunar bison and unicorns, fire-carrying bipedal beavers, and intelligent winged 'man-bats,' and that the New York Sun was faithfully reporting these real astronomical findings.
Believed by: Tens of thousands of Sun readers in the late summer of 1835, plus clergy and curiosity-seekers who took the discoveries as real; rival editors and Herschel himself soon treated it as an obvious fabrication
The full story
Six days on the Moon
On August 25, 1835, readers of the New York Sunopened their penny paper to an astonishing headline: “Great Astronomical Discoveries Lately Made by Sir John Herschel.” Over the next six days the paper unfolded, in dense and technical installments, an account of what the celebrated astronomer had supposedly seen through a colossal new telescope set up at the Cape of Good Hope in southern Africa. The reports were credited to Dr. Andrew Grant, described as Herschel's travelling companion, and said to be reprinted from a supplement to the Edinburgh Journal of Science.
The wonders arrived in careful order. First the instrument itself, an optical marvel said to magnify by many thousands of times. Then the lunar surface came into view: basalt cliffs and beaches, forests of unfamiliar trees, poppy-strewn valleys, and broad inland seas. Then the animals. The paper described herds of miniature bison, bluish single-horned goats that read to many as unicorns, and tailless beavers that walked upright, carried their young in their arms, and built huts warmed by fire. Finally, in the fourth installment, the Sun introduced an intelligent species: winged humanoids it named Vespertilio-homo, the man-bat, covered in copper-colored hair and capable, the paper implied, of conversation and worship.
None of it had happened. There was no Dr. Grant, no lunar survey of this kind, and no man-bats. But the account was detailed, confident, and attached to one of the most respected names in science, and for a few remarkable days a great many New Yorkers believed the Moon was teeming with life.
How the fabrication was built
The genius of the hoax was not the man-bats. It was the scaffolding of real fact the fantasy was bolted to. Sir John Herschel was a genuine and eminent astronomer, and in 1835 he really was at the Cape of Good Hope conducting a real survey of the southern sky, a fact that had been reported in the ordinary press. Anyone who checked the premise would find it true. The Sun then built its invention outward from that solid footing, so that each fantastic step was reached by way of something verifiable.
The rest of the apparatus was pure stagecraft. The named author, Dr. Andrew Grant, did not exist. The cited source, the Edinburgh Journal of Science, was a real title that lent scientific weight, but it had ceased publication in 1833 and could not have carried the supplement the Sun described. The prose was thick with invented measurements, Latin species names, and technical asides, the texture of a scientific report rather than a tall tale. And the structure was patient: the series opened with plausible optics and geography and only gradually escalated to animals and then to intelligent beings, leading readers up a gentle slope from the credible to the impossible.
The series is generally attributed to Richard Adams Locke, a Cambridge-educated reporter working for the Sun, who publicly admitted authorship in 1840 in a letter to the weekly New World. Whether he meant it as a straight circulation stunt or as a satire of runaway speculation about extraterrestrial life is still argued. What is not in doubt is that the paper presented the material as factual reporting, and that it was built to be believed.
Why a city believed in man-bats
It is easy, at nearly two centuries' distance, to laugh at people who paid to read about beavers building huts on the Moon. But the belief made more sense in 1835 than the punchline suggests. The question of life beyond the Earth was not a fringe fancy; it was a live topic among educated people, and some respected figures had speculated openly about inhabitants of the Moon and planets. A newspaper announcing that the question had finally been settled by a famous astronomer was telling readers what many of them already half-expected to hear.
The messenger mattered as much as the message. The report came attached to Sir John Herschel, whose name carried about as much scientific authority as any in the English-speaking world, and it was framed as a reprint from a scientific journal. To a reader in 1835, that packaging was close to decisive. The habits of skepticism that a modern audience brings to a sensational news story, checking the byline, asking who confirmed it, noticing that the cited source had folded, were not yet second nature, in part because the cheap mass-market penny paperwas itself a new institution still earning, and testing, the public's trust.
The genius of the hoax was not the man-bats. It was the scaffolding of real fact the fantasy was bolted to.
And the writing did real work. By moving in small, plausible increments and burying its inventions in technical detail, the series never asked readers to swallow the man-bats all at once. By the time the winged people appeared, the reader had already accepted the telescope, the forests, and the bison, and each concession made the next one easier. That is how a good fabrication carries an audience: not by demanding a single act of faith, but by collecting many small ones.
The unmasking, and Herschel's reaction
The story did not survive contact with skeptical editors. Rival papers, some of them stung at having been scooped and others simply doubtful, began to press on the details, and the weakest joint gave way first: the Edinburgh Journal of Science the Sun had cited was defunct, having stopped publishing in 1833, so it plainly could not have carried an 1835 account of lunar discoveries. Once the cited source dissolved, the fictitious Dr. Grant and the physically impossible telescope followed. By the reckoning of most accounts, a journalist who challenged Locke drew from him a private admission that he had written the whole thing, and by the middle of September the affair was widely understood as a hoax.
The Sun, characteristically, did not grovel. It never issued a contrite, formal retraction so much as let the excitement subside, having already banked the circulation and the pamphlet sales. The paper had gotten what it wanted: for a stretch of late 1835 it could claim to be the most widely read daily in the world, and the moon series was a large part of the reason.
The one person with the best claim to be aggrieved was the man whose name had been used. Herschel, still at the Cape and entirely uninvolved, learned of the discoveries attributed to him only after the fact. By most accounts he was at first amused by the sheer extravagance of it, remarking that his real observations could never hope to be so exciting, and then increasingly irritated as he found himself fielding earnest questions from correspondents who wanted to know more about the man-bats. He had discovered nothing of the kind, and spent longer than he would have liked saying so.
Where the evidence lands
On the central claim, that Sir John Herschel discovered life on the Moon in 1835, the verdict is debunked, and it was debunked within weeks. The reports were credited to an author who did not exist and to a journal that no longer existed, described feats no telescope could perform, and were the invention of a newspaper that profited handsomely from them. Herschel made no such observations, and the Moon has no forests, oceans, bison, unicorns, beavers, or man-bats. There is no residual mystery about what happened: a penny paper printed a fabricated sensation, and readers, primed to believe in lunar life and trusting the authority of a famous name, took it as news.
What endures is the object lesson. The Great Moon Hoax is remembered as a foundational case of American “fake news” because it shows, with unusual clarity, how the machinery works: fasten an invention to a genuine fact, borrow the credibility of real institutions, escalate slowly, and let a commercial appetite for excitement do the rest. Edgar Allan Poe, who thought the Sun had borrowed his own moon-voyage idea, would return the favor a decade later with his own balloon fabrication in the same paper. The Moon, it turned out, was empty. The market for a thrilling story that looked like reporting was anything but.
What's still unexplained
- Locke's exact intent is still debated. Some read the series as pure circulation-driving fraud, others as satire, aimed at overheated speculation about extraterrestrial life or at a particular astronomer-theologian who had mused about moon-dwellers, that was simply taken literally by readers who missed the joke. Whether it began as a swindle, a spoof, or a blend of both does not change that the underlying claim was false, but it does color how the episode is understood.
- The precise circulation figures are approximate. The Sun's run is usually reported as climbing from around 8,000 toward roughly 19,000 or 20,000 during the affair, and the paper's boast of being the world's most-read daily is part of its own promotion. The general scale, a large and lucrative jump, is well attested; the exact numbers vary by source.
- Poe's charge of plagiarism is unresolved and probably unresolvable. He believed the Sun's series drew on his 'Hans Pfaall,' published weeks earlier, but the two works differ in form and aim, and the resemblance may reflect a shared fascination with lunar voyages rather than direct borrowing. It is a footnote to the hoax, not part of its debunking.
Point by point
The claim: The reports came from Sir John Herschel, a real and eminent astronomer who was actually observing at the Cape of Good Hope.
What the record shows: Herschel was genuinely at the Cape surveying the southern sky, which is exactly why the hoax chose him, but he had no connection to the articles and made no such observations. He was not a source, a co-author, or a party to the series in any way. When word of the fabrication reached him he treated it as an absurdity and was left, by his own later account, annoyed at having to field questions from people who believed it. His real work on the Moon recorded no forests, animals, or man-bats.
The claim: The account was reprinted from a respected scientific publication, the Edinburgh Journal of Science, which lent it authority.
What the record shows: This was the fraud's fatal flaw. The Edinburgh Journal of Science had ceased publication in 1833, two years before the Sun said it carried the lunar supplement, so the cited source could not have run the story. The named author, 'Dr. Andrew Grant,' Herschel's supposed amanuensis, did not exist. The scientific-sounding provenance was a stage set, built to borrow the credibility of real institutions the paper had no ties to.
The claim: A powerful enough telescope really could have resolved animals and winged people on the Moon in 1835.
What the record shows: No telescope of the era, or since, could do what the articles described. The Sun claimed an instrument that magnified by many thousands of times and could pick out individual creatures on the lunar surface; the optics and light-gathering this implies are physically impossible, and the described views bear no relation to what any real telescope shows. The 'discoveries' were literary invention dressed in the vocabulary of astronomy, not the product of any working instrument.
The claim: The Moon has abundant life: forests, oceans, herds of animals, and an intelligent winged species.
What the record shows: The Moon is an airless, waterless, heavily cratered world with no forests, seas, animals, or civilization. This was already understood in outline by nineteenth-century astronomers, and every subsequent observation, culminating in the Apollo landings and modern spacecraft, has confirmed a barren surface. The bison, unicorns, fire-carrying beavers, and man-bats were fictional creatures, several of them lifted from familiar earthly and mythical templates.
The claim: So many readers believed it that there must have been something real behind the reports.
What the record shows: Belief measures the skill of the hoax and the appetite of its audience, not the truth of the claim. The series was engineered to be believed: a real astronomer, a real expedition, a scientific-journal byline, and a slow escalation from plausible geography to fantastic zoology. Circulation soared because the story was thrilling and cheap to buy, and the Sun had every commercial reason to keep it going. Wide readership is what a good fabrication produces, not evidence that the Moon was ever inhabited.
The claim: The Sun was simply passing along a scientific report in good faith and was fooled like everyone else.
What the record shows: The paper manufactured the report rather than receiving it. The invented author, the defunct journal, the escalating structure, and the profitable pamphlet and print spin-offs all point to a deliberate construction, not an honest mistake. The series is generally attributed to the Sun's own reporter, Richard Adams Locke, who acknowledged writing it in 1840. This was the newspaper inventing a sensation, not being taken in by one.
Other readings
Angles that don't fit neatly into the claim or its rebuttal, laid out and weighed, not endorsed.
The 'it was satire, not a con' reading
One school holds that Locke intended the series as satire and never expected it to be believed, so calling it a hoax misstates the case. There is something to this: the piece can be read as a send-up of credulous speculation about alien life. But intent does not rescue the content. Whatever Locke meant, the Sun presented the discoveries as factual reporting attributed to a real scientist, readers reasonably took them as fact, and the paper profited from that belief. As a claim about the world, life on the Moon, it is false, and that is what this file rates.
The 'first fake news' framing
The hoax is often held up as the original 'fake news,' a tidy origin story for fabricated journalism. It is a fair label as far as it goes: a newspaper knowingly printed an invented sensation and was rewarded with circulation. The caution is against overreading it as unprecedented or as a simple morality tale. Fabrications, tall tales, and press hoaxes predate 1835; what the Great Moon Hoax illustrates especially clearly is how a new mass medium and a commercial incentive to thrill can turn invention into apparent news.
Timeline
- 1833Benjamin Day launches the New York Sun as a 'penny paper,' cheap, sensational, and aimed at a mass urban readership. Its business model runs on street sales and eye-catching stories rather than costly subscriptions, an incentive structure that rewards spectacle over verification.
- Jan 1834The real Sir John Herschel, one of the most famous scientists of the age, sails for the Cape of Good Hope in southern Africa to survey the stars of the southern sky. His genuine and widely reported expedition gives the later hoax a real, verifiable anchor to hang its inventions on.
- Jun 1835Edgar Allan Poe publishes 'The Unparalleled Adventure of One Hans Pfaall,' a tale of a voyage to the Moon by balloon, in the Southern Literary Messenger, roughly two months before the Sun's series. Poe would later accuse the Sun's account of borrowing from his idea.
- Aug 25, 1835The Sun runs the first of six articles under the banner 'Great Astronomical Discoveries Lately Made by Sir John Herschel.' The pieces are credited to 'Dr. Andrew Grant,' described as Herschel's travelling companion, and said to be reprinted from a supplement to the Edinburgh Journal of Science.
- Aug 25–31, 1835Across the six installments the wonders escalate. The paper describes a telescope of vast magnifying power, then lunar forests, beaches and inland seas, herds of bison, blue single-horned goats and 'unicorns,' bipedal tailless beavers that carry their young and build huts with fire, and finally an intelligent winged species, Vespertilio-homo, the 'man-bat.'
- Late Aug 1835The Sun's circulation surges, from a daily run in the neighborhood of 8,000 toward roughly 19,000, and the paper trumpets itself as the most widely read daily in the world. Pamphlet reprints of the 'discoveries' sell briskly, and lithographers issue prints of the lunar landscape and its inhabitants.
- Sep 1835Skeptical editors begin picking the story apart. The most damning point is simple: the Edinburgh Journal of Science, the outlet the Sun cited, had stopped publishing in 1833 and could not have carried the account. Pressed by a rival journalist, Locke is said to have conceded privately that the series was his invention, and by mid-September the fraud is widely acknowledged.
- 1840Richard Adams Locke publicly admits authorship of the series in a letter to the weekly New World, cementing the attribution that had circulated since 1835. Herschel, who learned of the hoax only after the fact, was at first amused, then wearied by having to correct the flood of questions it produced.
- Apr 13, 1844In a coda to the affair, Poe places his own 'Balloon-Hoax,' a fabricated report of a transatlantic balloon crossing, in the same New York Sun, where Locke was by then an editor. The Sun retracts it within days. The episode underscores how ready the penny press was to print a thrilling fabrication.
Contradicted. The Great Moon Hoax was a deliberate fabrication. Over six installments beginning August 25, 1835, the New York Sun claimed the astronomer Sir John Herschel, observing from a giant new telescope at the Cape of Good Hope, had catalogued forests, oceans, bison, unicorns, bipedal beavers, and flying 'man-bats' on the Moon. The reports were credited to a fictitious 'Dr. Andrew Grant' and said to be reprinted from the Edinburgh Journal of Science, a publication that had stopped printing in 1833. There was no such survey and no such discovery. The series is generally attributed to the Sun reporter Richard Adams Locke, who acknowledged authorship in 1840. Herschel had nothing to do with it. It is rated debunked.
Reviewed by The Conspiratory Editors · Last reviewed July 18, 2026 · How we rate
Sources
- 1.Belief, Legend, and the Great Moon Hoax, Library of Congress (Folklife Today blog) (2014)
- 2.Lunar animals and other objects Discovered by Sir John Herschel in his observatory at the Cape of Good Hope, Library of Congress (Prints & Photographs Division) (1835)
- 3.The Great Moon Hoax of 1835 Was Sci-Fi Passed Off as News, Encyclopaedia Britannica
- 4.'The Great Moon Hoax' is published in the 'New York Sun', HISTORY (A&E Television Networks)
- 5.The Great Moon Hoax (1835), Hoaxes.org (The Museum of Hoaxes)
- 6.The Great Moon Hoax Was Simply a Sign of Its Time, Smithsonian Magazine (2015)
- 7.Richard Adams Locke (Scientist of the Day), Linda Hall Library
- 8.How the Sun Conned the World With 'The Great Moon Hoax', JSTOR Daily
- 9.Great Moon Hoax, Wikipedia
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