Science News

https://phys.org/news/2017-08-distant-galaxy-high-energy-radio.html Distant galaxy sends out 15 high-energy radio bursts August 30, 2017 by Robert Sanders A sequence of 14 of the 15 detected bursts illustrate their dispersed spectrum and extreme variability. The streaks across the colored energy plot are the bursts appearing at different times and different energies because of dispersion caused by 3 billion years of travel through intergalactic space. In the top frequency spectrum, the dispersion has been removed to show the 300 microsecond pulse spike. Capturing this diverse set of bursts was made possible by the broad …

This paper caught my eye. I've highlighted the point I found intriguing. "Fungi belong to one of the largest and most diverse groups of living organisms. The evolutionary kinship within a fungal population has so far been inferred mostly from the gene-information–based trees (“gene trees”) constructed using a small number of genes. Since each gene evolves under different evolutionary pressure and time scale, it has been known that one gene tree for a population may differ from other gene trees for the same population, depending on the selection of the genes. We present whole-genome information-based trees (“genome trees”) using a variation of a computational algorith…

https://phys.org/news/2017-08-primordial-black-holes-forge-heavy.html Primordial black holes may have helped to forge heavy elements: https://journals.aps.org/prl/accepted/55077Yb0Qcf1cb5c79b095a1a918b69bd6d2e6077 Primordial black holes and r-process nucleosynthesis ABSTRACT We show that some or all of the inventory of r-process nucleosynthesis can be produced in interactions of primordial black holes (PBHs) with neutron stars (NSs) if PBHs with masses {10}-14\,{\rm M}_\odot < {\rm M}\rm PBH < {10}-8\,{\rm M}_\odot make up a few percent or more of the dark matter. A PBH captured by a neutron star (NS) sinks to the center of the NS and cons…

https://phys.org/news/2017-08-theory-heavy-elements-primordial-black.html New theory suggests heavy elements created when primordial black holes eat neutron stars from within (Phys.org)—A team of researchers at the University of California has come up with a new theory to explain how heavy elements such as metals came to exist. The group explains their theory in a paper published in the journal Physical Review Letters—it involves the idea of primordial black holes (PBHs) infesting the centers of neutron stars and eating them from the inside out. https://phys.org/news/2017-08-theory-heavy-elements-primordial-black.html ::::::::::::::::::::::::::::::::::::::::::…

Astronomers using Caltech's Owens Valley Radio Observatory (OVRO) have found evidence for a bizarre lensing system in space, in which a large assemblage of stars is magnifying a much more distant galaxy containing a jet-spewing supermassive black hole. https://phys.org/news/2017-08-cosmic-magnifying-lens-reveals-jets.html#jCp

https://phys.org/news/2017-08-dino-killing-asteroid-earth-years-darkness.html Tremendous amounts of soot, lofted into the air from global wildfires following a massive asteroid strike 66 million years ago, would have plunged Earth into darkness for nearly two years, new research finds. This would have shut down photosynthesis, drastically cooled the planet, and contributed to the mass extinction that marked the end of the age of dinosaurs. extract: Scientists also calculate that the force of the impact would have launched vaporized rock high above Earth's surface, where it would have condensed into small particles known as spherules. As the spherules…

http://www.sciencealert.com/stars-orbiting-a-supermassive-black-hole-may-have-finally-confirmed-general-relativity Stars Orbiting a Supermassive Black Hole May Have Finally Confirmed General Relativity: If you really, really want to scrutinise the limits of Einstein's general theory of relativity, there's a unique testing ground you ought to know about, although it's a little out of the way. The galactic centre – the heart of the Milky Way, some 26,000 light-years from Earth – hosts a supermassive black hole with a mass 4 million times that of the Sun. Now, for the first time, scientists have accurately recorded the orbits of stars around thi…

An incredibly simple way of making bacteria create little solar cells: http://www.bbc.co.uk/news/science-environment-40975719

Hi, there´s an awesome experiment trending right now: it shows the change of weight of sd cards when they are full of data. My question: is it necessary to use big sd cards like in the video or will it work with for example 64 gb cards? best regards

The origin of complex life on Earth just got a little less mysterious https://arstechnica.co.uk/science/2017/08/the-origin-of-complex-life-on-earth-just-got-a-little-less-mysterious/

https://phys.org/news/2017-08-atlas-evidence-light-by-light.html ATLAS observes direct evidence of light-by-light scattering: August 15, 2017 by Katarina Anthony Physicists from the ATLAS experiment at CERN have found the first direct evidence of high energy light-by-light scattering, a very rare process in which two photons – particles of light – interact and change direction. The result, published today in Nature Physics, confirms one of the oldest predictions of quantum electrodynamics (QED). "This is a milestone result: the first direct evidence of light interacting with itself at high energy," says Dan Tovey(University of Sheffield), ATLAS …

Less than a year after they launched the world’s only quantum communications satellite, Chinese researchers have for the first time ever sent entangled photons from space to ground stations on Earth. “This is the first step towards worldwide secure quantum communications, and maybe even a quantum internet,” says Anton Zeilinger, an expert on quantum physics at the University of Vienna in Austria. One of the building blocks of a secure quantum network is the ability to exchange entangled photons between two parties. When a pair of photons are entangled particles, measuring one instantly influences the state of the other, regardless of the distance between them. …

A research collaboration led by the University of Wisconsin-Milwaukee has for the first time created a three-dimensional movie showing a virus preparing to infect a healthy cell. http://uwm.edu/news/uwm-researchers-create-first-3d-movie-virus-action/

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http://www.virgo-gw.eu/docs/AdV_joins_O2_en.pdf VIRGO joins LIGO for the “Observation Run 2” (O2) data-taking period Today, Tuesday August 1st 2017, the VIRGO detector based in Europe has officially joined “Observation Run 2” (O2) and is now taking data alongside the American-based twin LIGO detectors. This major step forward for the VIRGO Collaboration is the outcome of a multi-year upgrade program, whose primary goal was to significantly improve the detector performance in terms of sensitivity. “The last months have been spent on commissioning VIRGO, and this went very well. We are eager to start our first science run, joining LIGO at this exciting time for ou…

https://medicalxpress.com/news/2017-08-prostate-cancer-cells-shapeshifters-distant.html Prostate cancer cells become 'shapeshifters' to spread to distant organs Johns Hopkins Kimmel Cancer Center scientists report they have discovered a biochemical process that gives prostate cancer cells the almost unnatural ability to change their shape, squeeze into other organs and take root in other parts of the body. The scientists say their cell culture and mouse studies of the process, which involves a cancer-related protein called AIM1, suggest potential ways to intercept or reverse the ability of cancers to metastasize, or spread. Results of the research are descr…

Calling All Scientists! Hi. I hope you enjoy my brand new science podcast - "All This Science". Each episode features one science concept explained in five minutes (like Minute Rice!). It's wild, wacky and always entertaining. The url is deleted Thanks for listening. Science Rulez !

https://phys.org/news/2017-08-scientists-probe-conditions-stellar-interiors.html Scientists probe the conditions of stellar interiors to measure nuclear reactions August 7, 2017 Most of the nuclear reactions that drive the nucleosynthesis of the elements in our universe occur in very extreme stellar plasma conditions. This intense environment found in the deep interiors of stars has made it nearly impossible for scientists to perform nuclear measurements in these conditions - until now. In a unique cross-disciplinary collaboration between the fields of plasma physics, nuclear astrophysics and laser fusion, a team of researchers including scientists from …

https://phys.org/news/2017-08-standard-universe-precise-dark-energy.html Standard model of the universe withstands most precise test by Dark Energy Survey (Update) August 3, 2017 Map of dark matter made from gravitational lensing measurements of 26 million galaxies in the Dark Energy Survey. Red regions have more dark matter than average, blue regions less dark matter. Credit: Chihway Chang/University of Chicago/DES collaboration Astrophysicists have a fairly accurate understanding of how the universe ages: That's the conclusion of new results from the Dark Energy Survey (DES), a large internat…

The Telegraph reports: Facebook A.I. researchers had to shut down a pair of artificial intelligence programs after they developed their own "incomprehensible" language. No doubt they were plotting in secret the demise or subjugation of the hairless chimps that created them. This story is both humorous and disturbing. Enjoy!

http://www.bbc.co.uk/news/uk-england-bristol-40740422 Pictures of the biggest bang actually we have observed in the universe plus discussion.

In case you are not aquainted with Star Wars and The Force, "Midi Chlorians" are a microscopic life form that lives in cells. High levels of midi-chlorians in your body give you a big chance to become a great Jedi warrior...or a Sith lord if you prefer. The groundbreaking study can be found here: https://arjonline.org/uploads/articleInPress/2/70118ARJB2017005.pdf The article on this hoax is here: http://www.sciencealert.com/a-neuroscientist-just-tricked-4-journals-into-accepting-a-fake-paper-on-midi-chlorians

National Geographic Chasing Genius Sustainable Planet, Edition Check this out....its off the grid. Green, Sustainable, On site, no cost electricity production. Erin Nelson developed modifications both in VPSA adapting to a multi species simultaneous generation and in Fuel Cell technology, using ball graphite as a lower cost and greater conduction than platinum. The result, hydrogen electricity, up to 60 mgw/d http://www.natgeochasinggenius.com/video/230

Maryam Mirzakhani, Iranian math genius, the first woman to win the fields medal dies of cancer at 40. http://ifpnews.com/exclusive/iran-math-genius-die-cancer/

There is a bunch of work being done by many scientists on the origin and early years of the solar system. An important datum is the age of Jupiter. This is because, as the largest planet in the system, it has a profound effect on the others. The presence of the asteroid belt rather than a planet at that distance is an example. A team of researchers have used an interesting approach to try to define this. "using molybdenum and tungsten isotope measurements on iron meteorites, [they demonstrated] that meteorites derive from two genetically distinct nebular reservoirs that coexisted and remained spatially separated between ∼1 My and ∼3–4 My after Solar System formation."…