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This article lists a number of significant events in science that have occurred in the third quarter of 2020. Events July 1 July Scientist at CERN report that the LHCb experiment has observed a four-charm tetraquark particle never seen before, which is likely to be the first of a previously undiscovered class of particles. Scientists report that they measured that quantum vacuum fluctuations can influence the motion of macroscopic, human-scale objects for the first time by measuring correlations below the standard quantum limit between the position/momentum uncertainty of the mirrors of LIGO and the photon number/phase uncertainty of light that they reflect. 2 July – Scientists report that a more infectious SARS-CoV-2 variant with spike protein variant G614 has replaced D614 as the dominant form in the pandemic. 3 July Scientists report in a preprint that a major genetic risk factor of the SARS-CoV-2 was inherited from archaic Neanderthals ~60,000 years ago. Scientists show that adding an organic-based ionic solid into perovskites can result in substantial improvement in solar cell performance and stability. The study also reveals a complex degradation route that is responsible for failures in aged perovskite solar cells. The understanding could help the future development of photovoltaic technologies with industrially relevant longevity. Via analysis of satellite images, scientists show that certified "sustainable" palm oil production resulted in deforestation of tropical forests of Sumatra and Borneo and endangered mammals' habitat degradation in the last 30 years. 4 July According to WHO chief scientist Dr. Soumya Swaminathan, the Infection Fatality Rate (IFR) of COVID-19 and related pandemic is currently estimated at 0.6%, and the Case Fatality Rate (CFR) at 5%. Scientists report that COVID-19 may be an airborne disease, and not just one transmitted by droplets of the virus in the air or on surfaces. 6 July Astronomers report evidence that the chemical element carbon, the fourth most abundant chemical element (after hydrogen, helium and oxygen) in the universe, and one of the most essential chemical elements for the formation of life as we know it, was formed mainly in white dwarf stars, particularly those bigger than two solar masses. The Versatile Video Coding standard (H.266) is finalised, designed to halve the bitrate of previous formats, and paving the way for on-demand 8K streaming services. Scientists report that analysis of simulations and a recent observational field model show that maximum rates of directional change of Earth's magnetic field reached ~10° per year – almost 100 times faster than current changes and ~10 times faster than previously thought. Researchers at the University of Texas at Austin demonstrate a cobalt-free, high-energy, lithium-ion battery. 8 July Scientists writing in the journal Brain publish evidence that a few mildly affected or recovering COVID-19 patients can be left with serious or potentially fatal brain conditions, such as delirium, inflammation, nerve damage, and psychosis. Mitochondria are gene-edited for the first time, using a new kind of CRISPR-free base editor (DdCBE), by a team at the Broad Institute. The World Meteorological Organisation (WMO) announces that it assesses a 20% chance that global warming compared to pre-industrial levels will exceed 1.5 °C in at least one year within the five years of 2020–2024. 1.5 °C is often considered to be a key threshold of global warming and nations have agreed to attempt limiting contemporary climate change to it under the Paris Agreement. A team of researchers report that they succeeded in using a genetically-altered variant of R. sulfidophilum to produce spidroins, the main proteins in spider silk. Scientists assess that the geoengineering technique of enhanced rock weathering – spreading finely crushed basalt on fields – has potential use for carbon dioxide removal by nations, identifying costs, opportunities and engineering challenges. Scientist report the development of a mobile robot chemist and demonstrate that it can assist in experimental searches. According to the scientists their strategy was automating the researcher rather than the instruments – freeing up time for the human researchers to think creatively – and could identify photocatalyst mixtures for hydrogen production from water that were six times more active than initial formulations. 9 July – The World Health Organization (WHO) formally recognises that COVID-19 can be transmitted indoors by droplets in the air. People in crowded settings with poor ventilation run the risk of being infected, according to the updated scientific advice. 10 July Astronomers announce the discovery of the South Pole Wall, a massive cosmic structure formed by a giant wall of galaxies (a galaxy filament) that extends across at least 700 million light-years of space. Scientists report that phytoplankton primary production in the Arctic Ocean increased by 57% between 1998 and 2018 due to higher concentrations, suggesting the ocean may be able to support higher trophic level production and additional carbon fixation in the future. Scientists report that the Moon formed about 85 million years later than thought (4.425 ±0.025 bya) and that it hosted an ocean of magma for longer than previously thought (~200 million years). 13 July – Researchers report the development of a reusable aluminium surface for efficient solar-based water sanitation to below the WHO and EPA standards for drinkable water. 14 July – Scientists report the first complete and gap-less assembly of a human X chromosome. 15 July Researchers report the discovery of chemolithoautotrophic bacterial culture that feeds on the metal manganese after performing unrelated experiments and named its bacterial species Candidatus Manganitrophus noduliformans and Ramlibacter lithotrophicus. In two studies researchers of the Global Carbon Project summarise and analyse new estimates of the global methane budget and provide data and insights on sources and sinks for the geographical regions and economic sectors where the rising anthropogenic methane emissions have changed the most over recent decades. According to the studies, global methane emissions for the 2008 to 2017 decade increased by almost 10 percent compared to the previous decade. 16 July – Scientists report to have identified 10 genomic loci which appear to intrinsically influence healthspan, lifespan, and longevity – of which half have not been reported previously at genome-wide significance and most being associated with cardiovascular disease – as well as haem metabolism as a promising candidate for further research within the field. Their study using public biological data on 1.75 m people with known lifespans overall, suggests that haem metabolism may play a role in human ageing and that high levels of iron in the blood likely reduce, and genes involved in metabolising iron likely increase healthy years.... Discover the Pamela Frison popular books. Find the top 100 most popular Pamela Frison books.