Science
1171 verified facts in this category, showing 301–400.
- Michel Davier stated that there is only a 1 in 40,000 chance that the observed difference between the Muon g-2 experimental result and the theoretical prediction is due to statistical chance.
- Homo erectus lived in the area now known as Laos for more than one million years.
- Fragments of a human skull found at Tam Pa Ling Cave in Laos have been dated to between 46,000 and 63,000 years old.
- Preliminary analysis indicated the remains belonged to a child between six and eight years old, nicknamed 'Pangpond' after a popular Thai cartoon character.
- In 1983, The Lancet published two brief letters with the same title, separately signed by Warren and Marshall, presenting their preliminary findings on the new bacterium.
- Robin Warren first observed Helicobacter pylori in the gastric epithelium on June 11, 1979, his 42nd birthday.
- According to the study, achieving full heat adaptation in Spain would require the heat mortality trigger temperature to rise at an average rate of 0.6°C per decade nationwide.
- The study reported that the heat mortality 'trigger temperature' is 32°C for Alicante, a threshold reached on 17% of days per year.
- According to the study, heat-attributable deaths in Spain currently total about 1,300 per year and would rise to about 13,000 per year in the 2051-2100 period under a no-adaptation scenario with the RCP8.5 emissions pathway.
- The study found that failing to adapt to heat would increase heat-related mortality in Spain by a factor of 10 over the next 80 years.
- A study published in Environmental Research estimated that failing to adapt to rising heat would cost Spain approximately 50 billion euros per year.
- Paleocoast models developed by specialists from the Patagonian Institute of Geology and Paleontology (IPGP-CONICET) indicate that 11,000 years ago the sea was located nine kilometers from the current coastline.
- The remains were discovered in October 2020 by a group of construction workers digging to install gas lines in a house under construction.
- Researchers from IDEAus-CONICET found two human individuals in Camarones, Chubut province, radiocarbon-dated to 9200 and 9700 years before present, equivalent to approximately 10,400 and 11,000 calendar years old.
- Radiocarbon dating determined that the dog lived in the 17th century.
- Bioapatite dating of the Neoesclerocalyptus bones, conducted in France, determined the skeleton to be 21,000 years old, marking the first such bone dating performed on this genus.
- A glyptodont skeleton with cut marks was found beside the Reconquista river near the Roggero Dam, on the border between Merlo and Moreno, Buenos Aires province, Argentina.
- The fundamental reference marker for the NGF/IGN69 system, designated M.AC-0-VIII, is located inside the buildings of the Marseille Tide Gauge.
- Germany's vertical reference zero is determined from the mean sea level at Amsterdam.
- France's zero level for altitudes was fixed using tide-gauge observations at Marseille taken between February 1885 and December 1896.
- A team of researchers examined data taken by NASA's Infrared Astronomical Satellite (IRAS) in 1983 and identified hundreds of potential black holes.
- Pierluigi Rinaldi discovered an early-Universe object he named 'Virgil', together with another object he named 'Cerberus', naming Virgil after a character in Dante's The Divine Comedy.
- Little red dots observed by JWST show broad spectral emission lines typical of active galactic nuclei (AGNs), indicating gas spinning around a black hole.
- MBARI technology has been used to document more than 250 deep-sea species previously unknown to science.
- 11 different participants independently suggested the name 'populi' during the online naming effort for the chiton.
- Veleropilina gretchenae is one of the first members of the class Monoplacophora to have a high-quality genome published directly from its holotype specimen.
- Until 2017, giant manta rays were classified in their own genus, Manta, before genetic studies led to their reclassification as Mobula birostris.
- The JAMA Neurology study found that sleeping nine hours or more per night was linked to cognitive problems, particularly impaired decision-making.
- The JAMA Neurology study found that sleeping six hours or less per night was associated with increased amyloid-beta, a protein that can form brain plaque associated with Alzheimer's disease.
- Only 7.7% of U.S. adults, and 2.9% of children and adolescents, eat the recommended amount of whole grains (NHANES 2009–2010).
- Refined carbohydrates account for approximately 42% of total calories in the average American diet.
- Cocoa can slow blood clotting, which may increase the risk of bruising and bleeding in people with bleeding disorders or those taking anticoagulant or antiplatelet drugs.
- Caffeine in cocoa may block the effects of dipyridamole (Persantine) or adenosine (Adenocard) used in cardiac stress tests.
- In the HYVET trial, antihypertensive treatment with sustained-release indapamide, with or without perindopril, reduced death from any cause by 21% (95% CI, 4 to 35; P=0.02) among patients aged 80 years or older.
- Archaeologists found mastodon bones at a site dated to around 130,000 years ago.
- The forearm fragment found at Bianfu Cave is the first Denisovan forearm bone ever discovered.
- Denisovans were first identified in 2010 from DNA extracted from an ancient finger bone found in Denisova Cave, Siberia.
- Ron Clarke classifies the Little Foot fossil as belonging to the species Australopithecus prometheus.
- Previous attempts to date the Little Foot fossil produced results ranging from 2.2 million years old to more than 4 million years old.
- The Lucy skeleton (Australopithecus afarensis) is about 40 percent complete.
- Time use research has combined time use surveys with wearable devices and bodycams to add context to collected data.
- Combination-pill users who miss two or more hormone-containing pills in a row should take only the most recently missed pill immediately and discard the other missed pills.
- The first detection of a neutron star merger occurred in 2017.
- The experimental measurement of the muon's magnetic properties has diverged from Standard Model theoretical predictions for over 10 years (as of 2021).
- Royal jelly contains approximately 1,000 μg/g of acetylcholine.
- During the 150-year period from A.D. 800 to 950, rainfall in the Maya region repeatedly declined for periods lasting as long as a decade.
- A study found evidence of a mild drought involving a 25-40 percent decrease in rainfall in the Maya region between A.D. 800 and 950, probably associated with reduced summer storm activity.
- Andrea Piccioli, Director General of the Italian National Institute of Health (ISS), stated that persistent chemical substances used over the last fifty years, as well as traces of the SARS-CoV-2 virus, were found during voyages across four oceans and ten seas of the planet.
- In the study, the group exposed to hot conditions drank twice as much liquid as the control group, including the day before the exercise.
- Samuel Hirst said the research team found the opposite pattern from what they initially hypothesized regarding venom complexity and island size.
- Certain foods such as avocados, walnuts, and licorice can affect lab test results.
- In 2017, health departments working with CDC's Antibiotic Resistance Lab Network found more than 220 instances in the United States of germs carrying 'unusual' antibiotic-resistance genes.
- The American Institute of Steel Construction states that while jet fuel does not burn hot enough to melt steel, it can reduce steel's strength by more than 50%.
- Massive volcanism 252 million years ago caused rapid environmental change that eliminated most animal species on Earth.
- For nearly the first half of Earth's history, the planet's air and oceans were essentially oxygen-free.
- Cyanobacteria ingest carbon dioxide and release oxygen, and billions of years ago they began producing more oxygen than Earth's natural processes consumed, causing oxygen to build up in the atmosphere.
- Unrefined sugars such as honey, maple syrup, and coconut sugar are still classified as added sugar and count toward recommended daily added sugar limits, despite containing small amounts of vitamins and minerals.
- Comet 3I/ATLAS, discovered on July 1, 2025, is only the third known interstellar visitor to the solar system, following 1I/'Oumuamua in 2017 and 2I/Borisov in 2019.
- The masseter jaw muscle can close the teeth with a force of up to 200 pounds on the molars.
- The human small intestine is over 20 feet long, while the large intestine is about 5 feet long.
- The human intestines average 25 feet in total length.
- An adult's stomach generally stays the same size unless surgery intentionally makes it smaller; eating less does not shrink the stomach.
- Most digestion occurs in the small intestine rather than the stomach.
- Norovirus typically has an incubation period of 24–48 hours, but can remain detectable in stool for weeks, with a median time to loss of detectable virus of about one month.
- Catherine Madaffari, M.D., a never-smoker and Mayo Clinic physician with no family history or other risk factors, was diagnosed with lung adenocarcinoma in 2015 after experiencing a lingering cough.
- In the United States, someone is diagnosed with lung cancer every 2½ minutes.
- Research indicates the Tasmanian tiger (thylacine) had powerful snapping bites suited to catching small and medium-sized prey like bandicoots, rather than large animals such as sheep and cattle.
- NASA's Voyager 1 became the first spacecraft to enter interstellar space in 2012.
- In 2022, researchers at Lawrence Livermore National Laboratory achieved nuclear-fusion net energy gain, and repeated the result in 2023, though the experimental apparatus consumed far more power than the fusion fuel produced.
- A study published in the Journal of Sleep Research (Vol. 10, No. 2) in June 2001 found that sleep-deprived participants showed poorer performance, reduced activation in the left temporal region, and increased activation in prefrontal and parietal regions during a task combining arithmetic and verbal learning.
- In the Nature verbal-learning study, activity in the left temporal lobe (a classic language-processing area) decreased after sleep deprivation, even though better performance was associated with increased parietal-lobe activity.
- A verbal-learning study published in Nature (Vol. 403) in February 2000 found that prefrontal brain areas remained active after sleep deprivation while parietal-lobe activity increased.
- In the UCSD sleep deprivation study, fMRI showed less activity in the prefrontal cortex during a sleep-deprived arithmetic task, a region associated with working-memory functioning.
- A 2023 PLOS ONE meta-analysis found that aerobic exercise interventions—including dance, swimming, cycling, walking, running, and other sports—were effective for treating and preventing postpartum depression, except for yoga, which showed no significant improvement compared with a control group.
- People with cluster headache were found to have higher cortisol and lower melatonin levels compared to individuals without headache disorders.
- Both cluster headaches and migraine have been associated with circadian genes and altered levels of circadian-related hormones, including cortisol and melatonin.
- Cluster headaches were found to be more likely to occur in spring and fall, with attacks generally happening between late night and early morning.
- A meta-analysis found that symptoms followed a circadian pattern in 71% of cluster headache patients.
- A large Japanese study of men and women linked eating three or more bowls of miso soup a day to about 60% higher stomach-cancer risk, while two Japanese studies hinted at lower liver-cancer risk: one result was not statistically significant, and the other was seen only in women with no history of liver disease.
- A meta-analysis found that soy products, especially tofu and natto, were associated with lower risks of type 2 diabetes and cardiovascular events, but this risk reduction did not apply to miso, partly due to its higher sodium content.
- In mouse studies, the prebiotic Aspergillus oryzae found in miso soup reduced the risk of colitis.
- The International Agency for Research on Cancer classifies radiation from cell phones as 'possibly' a cancer-causing substance.
- In the INTERPHONE study, the 10% of people who used their cell phones the most had a small increase in the risk of a certain type of brain tumor.
- A 2024 World Health Organization meta-analysis of more than 60 studies published from 1994 through 2022, involving participants from 22 countries, found no link between cell-phone use and brain cancer.
- A 2020 case report in Oxford Medical Case Reports identified 'the balloon impasse sign' during percutaneous transvenous mitral valvuloplasty.
- A randomized clinical trial published in CMAJ on April 3, 2018, evaluated smartphone-based photoplethysmography to assess ulnar artery patency, with Pietro Di Santo as an author.
- A case report published in European Heart Journal—Case Reports on December 28, 2023, described percutaneous repair of a sinotubular junction aortic pseudoaneurysm using an atrial septal defect occluder.
- The Page-Ladson site was discovered accidentally in the early 1980s when former Navy SEAL Buddy Page found prehistoric elephant bones while scuba diving in the Aucilla River.
- Sediment layers containing pre-Clovis artifacts at Page-Ladson also contained remains of an extinct prehistoric camelid, bison, and mastodon.
- Ancient bison bones discovered at Ayer Pond on Orcas Island, Washington, were radiocarbon-dated to about 13,800 years ago.
- In a 2002 study, researchers Donald Grayson and David Meltzer found evidence of big-animal hunting at only 14 Clovis sites after examining data from scores of sites.
- The first hand and foot bones clearly linked to the extinct human relative Paranthropus boisei have been discovered.
- A Science study found that dinosaurs in New Mexico lived within 400,000 years of the asteroid impact 66 million years ago, contradicting claims that those dinosaurs were millions of years older than the extinction event.
- Some individual footprints from the Poland tetrapod tracksite were as wide as 10 inches (26 centimeters).
- Grzegorz Niedźwiedzki of Warsaw University co-authored a study on 395-million-year-old tetrapod footprints found in Poland.
- The Mongolian fossils of Zavacephale rinpoche are at least 14 million years older than the previously oldest known pachycephalosaur, Sinocephale from China.
- The Zavacephale rinpoche fossil contains the first hand digit (finger) bones ever reported for any pachycephalosaur.
- Zavacephale rinpoche is the oldest known pachycephalosaur, dating to roughly 108 million years ago.
- The Dueling Dinosaurs fossil was discovered in 2006 and remained inaccessible to scientists during a prolonged ownership dispute until the North Carolina Museum of Natural Sciences acquired it in 2020.
- In a food-sharing experiment, chimpanzee sharing behavior declined from an average of 7.12 out of 9 trials among juveniles to 4.43 among adults.