2,554 published verifications avg. score 5.6/10 1,246 rated true or mostly true 1,065 rated false or mostly false
“Olympus Mons on Mars is the largest volcano in the Solar System.”
Current scientific references support this claim. Multiple authoritative NASA and JPL sources explicitly identify Olympus Mons as the largest volcano in the Solar System, and no credible evidence in the record disputes that conclusion. Minor qualifiers such as “largest known” reflect normal scientific caution, not a real challenge to the claim.
“Olympus Mons on Mars is thought to have formed about 3.5 billion years ago.”
Evidence from USGS and peer-reviewed Mars geology studies supports an origin for Olympus Mons around 3.5 billion years ago, more broadly about 3.5 to 3.7 billion years ago. The claim matches the accepted estimate for when the volcano began forming. The main caveat is that Olympus Mons continued growing and resurfacing for billions of years afterward.
“Over the last century, scientists have recorded five eruptions of Olympus Mons with a Volcanic Explosivity Index (VEI) of 8.”
The claim is not supported by any credible evidence. No eruption of Olympus Mons has been recorded in the last century, and authoritative Mars sources do not list five events or assign VEI 8 ratings there. The statement also conflates Olympus Mons with separate research on ancient explosive volcanism elsewhere on Mars.
“Olympus Mons formed several billion years ago after two of Mars' largest tectonic plates collided.”
Olympus Mons did not form from a collision between major Martian tectonic plates. Scientific sources describe it as a shield volcano built by repeated eruptions over a long-lived hotspot on Mars’ mostly stagnant crust. While parts of the volcano are billions of years old, the claim’s central explanation is unsupported and contradicts the evidence.
“Dimethyl sulfoxide (DMSO) has anti-inflammatory effects in humans.”
Evidence supports that DMSO can reduce inflammatory markers in human-derived systems and has some human clinical evidence consistent with anti-inflammatory activity. The main limitation is that the strongest support comes from ex vivo and mechanistic studies, while clinical trials are smaller, mixed, and condition-specific. So the general claim is supported, but it overstates how firmly clinical benefit has been established in living patients.
“Cashiers are at increased risk of disease due to exposure to chemicals from handling thermal paper receipts.”
The evidence supports higher bisphenol exposure in cashiers who handle thermal receipts, but it does not clearly show that this exposure has translated into higher rates of disease in cashiers. The claim overstates what is established. A more accurate formulation is that receipt handling can increase exposure to chemicals of health concern, while the cashier-specific disease risk remains uncertain.
“COVID-19 vaccines did not help contain the COVID-19 pandemic.”
The claim is not supported by the evidence. Multiple high-quality studies and public health datasets show COVID-19 vaccines reduced infection and transmission in important periods, and consistently lowered hospitalization and death. That means they helped contain the pandemic’s spread and impact, even though they did not eliminate COVID-19 or work equally well against every variant.
“Reporters Without Borders has documented restrictions on the press, limits on dissent, and increasing control of Russia's domestic information space.”
RSF has plainly and repeatedly reported restrictions on the press, limits on dissent, and expanding state control over Russia’s domestic information space. That documentation appears in RSF’s own country and thematic reports and is reinforced by multiple independent human-rights and press-freedom organizations. The claim accurately describes RSF’s published record.
“Russian state media outlets RT and Sputnik have shifted from acting primarily as linear broadcast propaganda outlets to acting as nodes within broader narrative-distribution networks.”
The evidence strongly supports the claim that RT and Sputnik now operate less as stand-alone broadcasters and more as hubs within wider narrative-distribution networks. Multiple official and academic sources describe their role in seeding, amplifying, and laundering narratives across proxies, social media, mirrors, and aligned communities. Traditional broadcasting still exists, but it no longer appears to be the outlets’ main strategic value.
“By May 29, 2027, at least one Chinese launch provider will be conducting routine commercial orbital launches using a recovered and reflown first stage.”
The evidence shows rapid Chinese progress toward reusable orbital launch, but it does not support the stronger claim that routine commercial reflights will be underway by May 29, 2027. As of July 2026, booster recovery has been demonstrated, while the first booster reflights remain planned rather than completed. That leaves a substantial gap between an important technology milestone and an established commercial launch cadence using recovered first stages.
“Classical non-homologous end joining (c-NHEJ) in humans requires DNA ligase IV (LIG4) to seal DNA double-strand breaks.”
The evidence strongly supports this statement. In humans, canonical/classical NHEJ uses the XRCC4–DNA ligase IV complex to complete ligation of DNA double-strand breaks, and major reviews describe LIG4 as required and specific to c-NHEJ. Reports of other ligases acting in end joining refer to alternative, non-classical pathways rather than c-NHEJ.
“A U.S. federal law will soon require U.S. automakers to install in-vehicle infrared biometric cameras and other driver-monitoring systems that scan drivers' body language and track eye movements to detect driver impairment from alcohol intoxication or fatigue.”
The claim overstates both what federal law says and how quickly any requirement would arrive. Congress directed NHTSA to develop a standard for passive impaired-driving prevention technology, but the law does not mandate infrared biometric cameras, eye-tracking, or body-language scanning, and no final rule has yet imposed such hardware. Camera-based driver monitoring is only one possible compliance path among several.
“In Tuscany, the function of agriculture is closely linked to the landscape’s aesthetics, and the quality of the landscape determines the quality of the food.”
The statement captures a real Tuscan idea but overstates it. Agriculture in Tuscany is closely tied to maintaining and valuing the landscape, and that landscape contributes to the identity, reputation, and market value of local foods. But the evidence does not show that landscape aesthetics by themselves determine actual food quality; that depends on broader terroir, farming practices, and production standards.
“Music from Giacomo Puccini's operas was used by Italian Resistance groups during the Italian Resistance (1943–1945).”
The available evidence does not support the claim that Italian Resistance groups used music from Puccini’s operas. Standard references on Resistance songs and wartime musical practice describe folk, popular, revolutionary, and other borrowed tunes, but do not identify Puccini. Puccini’s fame in Italy is not evidence that partisan groups actually used his music.
“Sorpotel originated on 16th-century Portuguese plantations in Brazil as a dish created by enslaved Africans using pig offal and blood.”
The evidence does not support the claim as stated. Stronger historical and culinary sources generally trace sarapatel/sorpotel to Portugal and indicate that it was carried to Brazil, where it was adapted under colonial conditions. Enslaved Africans likely played an important role in transforming or popularizing the dish in Brazil, but the record does not firmly support saying they originated it there in the 16th century.
“Red blood cells are effective carriers of anticancer drugs, as demonstrated by recent scientific studies.”
Recent studies do support red-blood-cell-based systems as promising anticancer drug carriers. Multiple peer-reviewed papers show improved delivery and, in some animal tumor models, better efficacy or lower toxicity. The key caveat is that most of this evidence is preclinical, so the claim should not be read as proof of established effectiveness in human cancer care.
“MRI and fMRI neuroimaging studies have demonstrated that certain mental illnesses are associated with abnormal activity in specific brain regions involved in fear, emotional regulation, and decision-making.”
The evidence shows a well-established association between several mental illnesses and altered activity in brain circuits involved in fear, emotion regulation, and decision-making. Reviews and meta-analyses consistently implicate regions such as the amygdala, prefrontal cortex, and anterior cingulate. These findings are real, though often shared across disorders and not sufficient on their own for diagnosis.
“Research on anxiety disorders and OCD demonstrates that changes in neural circuits can strongly influence behavior and thought patterns.”
The available evidence strongly supports this statement. Across OCD and anxiety research, converging findings from neuroimaging, circuit models, and especially circuit-targeted interventions show that altering specific neural networks can change symptoms, behavior, and patterns of thought. The main caveat is that these relationships are often bidirectional and differ across disorders.
“The main determinant (predictor) of retail prices for fresh fruits and vegetables is the municipal tax rate.”
The evidence does not support municipal tax rates as the main driver of fresh fruit and vegetable prices. Reliable research shows taxes may raise prices when applied, but the largest determinants are supply and demand factors such as seasonality, weather, perishability, transport costs, and store type. The claim turns a real but limited price effect into the dominant explanation without evidence.
“Non-homologous end joining (NHEJ) repairs a DNA double-strand break by ligating the two cut ends directly together without requiring a homologous template.”
The claim captures the core mechanism of NHEJ. NHEJ repairs double-strand breaks by rejoining DNA ends without needing a homologous template, which is the key distinction from homologous recombination. However, the wording is somewhat simplified because NHEJ often processes damaged ends before ligation and can be error-prone rather than a perfectly clean end-to-end join.