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PeakMetrics / Fact Checks

Science & space fact checks

Explore claims publishers have checked about science & space. Read their original ratings and follow the evidence.

1,577 published reviews in this topic

FACTLYScience & space

Observations from the James Webb Space Telescope have disproved the Big Bang theory

Publisher’s rating: FALSE

The review identifies the claim as coming from a widely shared video that says James Webb Space Telescope observations disproved the Big Bang theory. It traces the video’s argument to a research paper about galaxy structure, rather than to a study directly testing whether the Big Bang occurred. The paper examined distant galaxies using JWST data; the review explains that the work focused on their structure and properties in the early universe. The reported findings concern how galaxies formed and evolved. The review says the researchers found that galaxy types change less quickly than previously believed, that disk galaxies make up over half the high-redshift galaxy population, and that distant galaxies were less clumpy and asymmetric than earlier observations suggested. These results revise understanding of early galaxy structure, but they do not establish that the universe’s origin or expansion history is wrong. The decisive point is the relationship between the findings and the theory: the review reports that the observations are consistent with Big Bang predictions and do not contradict the theory. It also notes that one of the paper’s authors said the work concerned galaxy evolution and was made possible by redshift in an expanding Big Bang universe. The video therefore presents research about galaxy formation as if it discredited a broader cosmological theory, a conclusion the reviewed study does not support.

Factcrescendo Sri LankaScience & space

Pictures of cats with unconventional colors and patterns are of rare and unknown species ,serpens cattus and felis salamandra

Publisher’s rating: False

The review addresses viral pictures of unusually patterned cats presented as rare species called “Serpens cattus” and “Felis Salamandra.” It concludes that the animals do not exist as those claimed species and that the images were generated using AI. The review describes checking the pictures’ origins with reverse image search and tracing them to separate creators and explanations for the two sets of images. For the snake-patterned cat pictures, the review says reverse image search led to Russian Facebook user Alex Vasiliev. It reports that Vasiliev described combining an ordinary cat image with an image of a mangrove snake to make the “Amazonian cat.” The review also reports that Dr. Andrew Kitchener, Principal Curator of Vertebrates at National Museums Scotland, confirmed there are no “Serpens Cattus or Snake Cats.” For pictures claimed to show “Felis Salamandra,” the review traces the artwork to an April Fool’s Day prank. It says creator Kâma Usha Bengal clarified that the images were made with AI using fire salamander images to produce the unusual patterns. As further support, the review reports that searches of scientific literature and databases, including the IUCN Red List and Catalogue of Life, found no results for either alleged species, and that their descriptions did not match known cat species.

LupaScience & space

“Foi filmado dentro do Círculo Polar Ártico, logo entre a fronteira Canadá-Alasca-Rússia. Dura apenas alguns segundos, mas a vista espetacular é admirável. Esse fenômeno só pode ser observado uma vez por ano, durante 36 segundos. A lua aparece em toda a sua glória, depois desaparece novamente. Ela está tão perto que parece que vai bater no chão. Imediatamente depois, há um eclipse solar total de 5 segundos durante o qual tudo fica preto. Esse fenômeno só ocorre no perigeu (o ponto onde a lua está mais próxima da terra), e é aqui que a tremenda velocidade pode ser vista! Pode acreditar que vai valer o seu dia, e…contemplemos as maravilhas do Criador”

Publisher’s rating: Falso