Scientific Discovery

Top 10 Worst Scientific Frauds

The most damaging cases of fabrication, falsification, and deception that shook public trust in science and destroyed careers.

202686 viewsMar 12, 2026 Updated Oct 3, 2026

Top10Grid rankings are decided by votes, not algorithms — use the buttons below to move this list.

Be the first

Top10Grid Editorial

Editorial team

Current Rankings

0
#1
Andrew Wakefield's Vaccine-Autism Study
Andrew Wakefield's 1998 Lancet paper ignited a global health crisis by falsely linking the MMR vaccine to autism. An investigation by _The BMJ_ uncovered that Wakefield manipulated patient data, including falsifying medical histories for all 12 children in the study. This single fraudulent publication triggered a sharp decline in vaccination rates, leading to measles outbreaks that caused at least 10 deaths in the U.S. and Europe between 2000 and 2015.
More info →
Details →
0
#2
Hwang Woo-suk's Stem Cell Fabrication
Hwang Woo-suk's claim to have created 11 patient-specific stem cell lines via cloned human embryos was hailed as a breakthrough before it unraveled spectacularly. In 2006, a Seoul National University panel confirmed that all data from his two landmark _Science_ papers were fabricated, and 9 of the 11 lines were fakes derived from conventional IVF embryos. The scandal devastated stem cell research, setting the field back by roughly 5 years and costing South Korea over $40 million in wasted funding.
More info →
Details →
0
#3
Jan Hendrik Schön's Physics Papers
Jan Hendrik Schön produced a dazzling string of 16 papers on superconductivity and molecular electronics at Bell Labs before his fraud was exposed in 2002. An investigation found he had reused identical noise plots across multiple studies, fabricated data in at least 12 of 16 retracted papers, and claimed breakthroughs that were physically impossible, such as a single organic molecule switching at 1 GHz.
More info →
Details →
0
#4
Piltdown Man
The Piltdown Man, hailed in 1912 as the evolutionary 'missing link,' was actually a crude forgery combining a medieval human cranium with an orangutan jawbone and chemically treated to appear ancient. In 1953, radiocarbon dating and fluorine analysis conclusively proved it was a hoax, but the fraud had already distorted paleoanthropology for 41 years, causing scientists to reject genuine hominid fossils like the Taung Child for decades.
More info →
Details →
0
#5
Diederik Stapel's Social Psychology Fraud
No academic fraud has shaken the social sciences harder than Diederik Stapel's massive data fabrication. Over two decades, the Dutch psychologist invented data for at least 55 published papers—including widely cited studies on social behavior—directly fueling the replication crisis that has since discredited hundreds of findings. An independent investigation found that Stapel systematically manipulated raw data sets, often running no real experiments at all. His actions cost universities millions in wasted research funding and eroded public confidence in psychological science.
More info →
Details →
0
#6
Theranos and Elizabeth Holmes
Elizabeth Holmes turned her fraudulent blood-testing startup Theranos into a cautionary tale that rivals any academic scandal. She claimed her proprietary device could run hundreds of medical tests from a single drop of blood—a feat the technology never achieved. In reality, Theranos secretly used modified commercial analyzers, producing inaccurate results that endangered patients. Holmes defrauded investors of nearly $1 billion and misled the public about the device's capabilities. A federal jury convicted Holmes of four counts of fraud in 2022, sentencing her to 11 years in prison. The company's collapse led to over $700 million in shareholder losses.
More info →
Details →
0
#7
Haruko Obokata's STAP Cell Scandal
Haruko Obokata's STAP cell scandal remains one of science's most tragic frauds, partly due to its devastating personal toll. In 2014, Obokata and co-authors published two Nature papers claiming that simple acid baths, as gentle as pH 5.7, could reprogram adult mammalian cells into pluripotent stem cells. The claim was stunning—far more dramatic than the typical 0.1% efficiency of induced pluripotency—but it was also entirely fabricated. Multiple labs worldwide failed to replicate the results, and a subsequent investigation found falsified images and plagiarized text in the papers, which Nature retracted. Unlike Theranos, which primarily impacted investors and patients, Obokata's fraud cost a life: her mentor Yoshiki Sasai committed suicide. The scandal set back stem cell research by at least two years and wasted an estimated $25 million in grant funding across Japan.
More info →
Details →
0
#8
Eric Poehlman's Clinical Data Fabrication
Eric Poehlman made history as the first U.S. academic sentenced to prison for fabricating research data. While at the University of Vermont, he tampered with clinical data on menopause and aging across 10 federal grant applications and 17 published papers—a fraud that spanned over a decade. Poehlman's fabrications were not minor adjustments; he invented entire patient outcomes, altering body-mass index measurements and hormone levels to produce statistically significant results. A 2006 investigation led to Poehlman serving one year and one day in federal prison, along with a $180,000 fine and a lifetime ban from receiving federal research grants.
More info →
Details →
0
#9
Paolo Macchiarini's Synthetic Trachea Surgeries
Paolo Macchiarini's synthetic trachea surgeries stand as a grotesque betrayal of medical ethics, directly causing the deaths of most of his 16 patients. Evidence from a 2020 investigation revealed that his research on biodegradable scaffolds was based on fabricated data, with crucial preclinical results on pigs never replicated. This fraud outpaced even the misconduct of Ranjit Chandra, as Macchiarini's actions resulted in immediate, lethal harm to living people rather than statistical deception. A Swedish court convicted him of aggravated assault in 2022, sentencing him to 2.5 years in prison, though he faces additional charges in Italy. His operations, performed without regulatory approval, were 100% fatal in some documented cases, making this one of the deadliest academic frauds in modern history.
More info →
Details →
0
#10
Ranjit Chandra's Nutrition Studies
Ranjit Chandra's nutrition studies represent a decades-long web of fabrication that influenced infant feeding guidelines worldwide. His 2001 study claiming that multivitamins boost IQ in infants was retracted in 2015 after an investigation found that the data had been entirely manufactured—no subjects had ever been enrolled at the reported facility. This fraud was broader in scope than the relatively contained case of Paolo Macchiarini, affecting over 30 retracted papers from Memorial University. Chandra's claims that breast milk substitutes were inferior triggered 57% of his cited studies to be deemed unreliable, leaving pediatricians and parents misled for nearly two decades. Despite being stripped of his professorship in 2015, he never faced criminal charges, a stark contrast to Macchiarini's imprisonment.
More info →
Details →

Current Rankings

Share this list

86 views

Get ranking updates

Get the weekly science rundown

Only lists published since the last email. Join the early readers.

Only Top 10s published in the last 7 days
One email a week — and none at all in a week with nothing new
Unsubscribe in one click

No spam. One email per week. Unsubscribe anytime.

Readers Also Ranked

More Lists Like This

Top 10 Most Controversial Science Theories

#1Many-Worlds Interpretation of Quantum Mechanics
#2String Theory
#3Panspermia

Top 10 Most Controversial Gene Editing Applications

#1He Jiankui's CRISPR Babies
#2Germline Editing for Heritable Traits
#3Gene Drives for Mosquito Elimination

Top 10 Worst Science Funding Decisions

#1Cancellation of the Superconducting Super Collider
#2Defunding the Office of Technology Assessment
#3Chronic Underfunding of Pandemic Preparedness

Frequently asked questions

What is considered the most famous scientific fraud in history?

The Piltdown Man hoax, where a fake human ancestor skull was presented in 1912, is often considered the most famous scientific fraud before being exposed in 1953.

How did the case of Hwang Woo-suk's stem cell fraud come to light?

Hwang Woo-suk's fraudulent human stem cell cloning was uncovered in 2005 when his data could not be replicated and a whistleblower revealed ethical violations and fabricated results.

What are common consequences for scientists who commit major fraud?

Consequences typically include retraction of published papers, loss of academic positions, funding bans, and in some cases criminal charges or imprisonment.

Why do scientific frauds often go undetected for years?

They remain undetected due to a combination of publication bias, lack of replication efforts, and the difficulty of verifying raw data, especially when researchers hold significant authority.

Did the MMR vaccine–autism study by Andrew Wakefield affect public health?

Yes, the fraudulent 1998 study linking MMR vaccine to autism caused a sharp decline in vaccination rates, leading to measles outbreaks, despite massive subsequent research debunking the claim.