Know Science at the March for Science

by Chiara Bertipaglia, Postdoctoral Research Scientist at Columbia University and KnowScience editor   Yesterday, Saturday 22nd April 2017, on Earth Day, Know Science marched together with thousands of protesters at the March for Science in New York City. We are incredibly proud to have joined such a big event. We felt relieved to be part of a lively community of science supporters that care about science and realize how fundamental it is to society. Following the statement issued by our founder and president Dr. Simona Giunta, we manifested to express our deep concern about recent political orders that undermine the independence of scientific research and jeopardize scientific funding. We hope that all the science supporters that joined the satellite marches in more than 600 cities from all 7 continents have been successful in shaking the conscience of those that get to decide about science funding.   Please follow and like...

Zika hijacks host cells’ skeleton, persists in a wide range of tissues for weeks

By Giorgia Guglielmi       Scientists moved one step closer to understanding how Zika virus takes hold of host cells, and where and for how long it lurks inside the body. A new study, published in Cell Reports, showed that Zika reshapes the cell’s skeleton to fortify hollow structures where it makes daughter viruses. When scientists used a drug that makes the cell’s structural fibers immovable, the virus was unable to make copies of itself. These drugs might provide a therapeutic option against Zika. To develop new Zika therapies, it’s crucial to know where and when the virus is present within the organism. To address this issue, researchers studied Zika’s spread in infected macaques. The results are detailed in PLOS Pathogens. Zika infected a wide range of tissues, including peripheral nervous system, joints, and muscles, and it persisted in those tissues up to five weeks. What’s more, Zika was found in the reproductive tract of infected animals. The virus’ persistence in reproductive organs might be key to its sexual transmission. It could also explain why Zika infection during pregnancy is associated with crippling birth defects such as abnormally small heads, a condition known as microcephaly.   Giorgia Guglielmi is a graduate student in the MIT Program in Science Writing and a freelance science journalist based in Cambridge, MA. She received a PhD in Biology from the European Molecular Biology Laboratory in Heidelberg, Germany, where she studied how embryos get their final shape.   Please follow and like...
Our extinct ancient relatives, Neanderthals, are more developed than previously thought

Our extinct ancient relatives, Neanderthals, are more developed than previously thought

By Simona Giunta, Postdoctoral Research Scientist at Rockefeller University   Human ancestors, Homo neanderthalensis, who lived about 100,00 years ago, were able to self-medicate, showing knowledge of medicinal plants and their pain-relieveing and curative properties. A new study published yesterday in the journal Nature, discovered new evidence using DNA extracted from a tooth plaque. It contained traces of the naturally-occuring antibiotic, penicillin found in the penicillium fungus, and of bark roots and leaves containing salicylic acid, active ingredient in aspirin and other pain-killer. Because DNA from the same individual also reveled presence of a diarrhoea-causing pathogen and of dental abscess, scientists suggest that he may have been self-medicating to address these health issues.   Thanks to advancing in sequencing technologies, the study shows comprehensive sequencing of the neanderthal man DNA and its microbiome, portraying a novel view of Neanderthals and the society human ancestors lived in many thousands of years ago as more advanced than previously thought.     Source publication: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature21674.html#affil-auth   Please follow and like...

NASA announces 7 new exoplanets in the universe, 3 of which in habitable zones

By Chiara Bertipaglia, Postdoctoral Research Scientist at Columbia University and KnowScience editor     On Wednesday 22nd February NASA announced the discovery of 7 rocky planets just 39 light years (235 trillion miles) away from the Earth. The study, published in the scientific journal Nature, is fruit of collaboration between astronomers at the University of Liege in Belgium and NASA’s laboratories at Caltech in California. These 7 exoplanets (planets beyond our solar system) appear to be rocky and are part of the TRAPPIST-1 system, meaning they all orbit around the same star called TRAPPIST-1. The TRAPPIST-1 system was discovered just a year ago by the Transiting Planets and Planetesimal Small Telescope (TRAPPIST) in Chile, reporting, at the time, only 2 planets around the star. TRAPPIST-1 is an ultracool dwarf, a type of star emitting infrared light, impossible to see by naked eye. It was therefore an ideal candidate to be studied by the infrared space telescope Spitzer, which was launched in space in the Summer of 2003, to explore the angles of the universe that are inaccessible to normal optical telescopes. To properly record the light emitted by TRAPPIST-1, Spitzer had to be modified directly “in space” by astronauts, said Sean Carey, manager of NASA’s Spitzer Science Center at Caltech/IPAC during the press release of last Wednesday. It was worth it since the new modifications allowed to record the presence of 5 more planets. TRAPPIST- 1 is 10 times smaller than the sun and produces nearly a thousand times less radiation. The infrared emission spectrum of TRAPPIST-1 is what makes it dimmer and colder than our sun, and allows...
NASA announces 7 new planets in the universe, 3 of which in habitable zones

NASA announces 7 new planets in the universe, 3 of which in habitable zones

By Chiara Bertipaglia, Postdoctoral Research Scientist at Columbia University and KnowScience editor On Wednesday 22nd February NASA announced the discovery of 7 rocky planets just 39 light years (235 trillion miles) away from the Earth. The study, published in the scientific journal Nature, is fruit of collaboration between astronomers at the University of Liege in Belgium and NASA’s laboratories at Caltech in California. These 7 exoplanets (planets beyond our solar system) appear to be rocky and are part of the TRAPPIST-1 system, meaning they all orbit around the same star called TRAPPIST-1. The TRAPPIST-1 system was discovered just a year ago by the Transiting Planets and Planetesimal Small Telescope (TRAPPIST) in Chile reporting, at the time, only 2 planets around the star. TRAPPIST-1 is an ultracool dwarf, a type of star emitting infrared light, impossible to see by naked eye. It is 10 times smaller than the sun and much dimmer and colder since it produces nearly a thousand times less radiation.  It was therefore an ideal candidate to be studied by the infrared space telescope Spitzer, which was launched in space in the Summer of 2003 to explore the corners of the universe that are inaccessible to normal optical telescopes. To properly record the light emitted by TRAPPIST-1, Spitzer had to be modified directly “in space” by astronauts, said Sean Carey, manager of NASA’s Spitzer Science Center at Caltech/IPAC, during the press conference of last Wednesday. It was worth it, since the new modifications allowed to record the presence of 5 more planets. The 7 planets appear to orbit relatively close to the star, 20-200 times closer than the...
Undermining science damages society: Scientists unite against the latest political changes

Undermining science damages society: Scientists unite against the latest political changes

Know Science is a non-profit organization that was born with the mission to share science and the latest scientific discoveries with the taxpayers that finance the research: YOU. A week after the Trump administration took office, the scientific community has already begun fearing for its operational independence, its freedom in communicating scientific findings to the public and, ultimately, in the ability for the US to continue being a leader in science and biotech. The EPA (Environmental Protection Agency), the USDA (United States Department of Agriculture), the HHS (Department of Health and Human Services), the Department of Transportation and the National Park Service were told to stop any form of communication to the media and the general public regarding their research results. Publication in scientific journals would still be allowed, but photographs, press releases, blogs or social media posts are forbidden, at least until the content has been vetted by the political appointees (aka, the Trump administration’s transition team). Which raises the question, should politics control the press in such a radical way? And, when it comes to science and facts-based evidence, withholding information from the public sounds even more radical. If this is not enough to alarm you, it also seems that EPA contracts approvals have been frozen and new funds for research withheld. It’s not only access to information that is being oppressed – it’s access to resources too. EPA is the agency that writes and enforces rules aimed at protecting the environment: it regulates and controls matters like emissions from vehicles, the chemical composition of drinking water, or the safe disposal of hazardous wastes. Significant cuts in...
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