Webb Discovers Exomoon-Forming Circumplanetary Disk around Gas-Giant Exoplanet
20 Oct
Science & Technology

Webb Discovers Exomoon-Forming Circumplanetary Disk around Gas-Giant Exoplanet

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Astronomers using the NASA/ESA/CSA James Webb Space Telescope have found the carbon-rich disk surrounding CT Cha b, a giant exoplanet around 620 light-years away from Earth in the constellation of Chamaeleon. Their results provide the first direct insight into the chemical and physical properties of material being accreted onto a gas giant and into its potential moon system.An artistic rendering of a dust and gas disk encircling the young exoplanet CT Cha b. Image credit: NASA / ESA / CSA / STScI / G. Cugno, University of Zürich & NCCR PlanetS / S. Grant, Carnegie Institution for Science / J. Olmsted, STScI / L. Hustak, STScI.CT Cha, also known as PDS 44 and TIC 454259409, is only 2 million years old and still accreting circumstellar material. However, the circumplanetary disk discovered by Webb is not part...
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Good Morning Business
20 Oct
Science & Technology

Good Morning Business

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This Tuesday, September 30, Patrick Martin-Genier, specialist in European questions, professor at Sciences Po, Serge Weinberg, founding president of Weinberg Capital Partner, Marion Graeffly, co-founder and director general of Telecoop, Dominique Carlac'h, vice-president of Abgi France in charge of institutional relations, and Christian Parisot, economist and advisor to Aurel BGC, were guests The Good Morning Business show presented by Laure Closier. Good Morning Business is to be seen or listen to Monday to Friday on BFM Business. ...
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Science history: Invention of the transistor ushers in the computing era — Oct. 3, 1950
20 Oct
Science & Technology

Science history: Invention of the transistor ushers in the computing era — Oct. 3, 1950

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A replica of the first working transistor. The design used two thin pieces of gold, a coiled spring, and a slab of germanium. Transistors have come a long way since then, with some of the smallest measuring just an atom thick.(Image credit: Science & Society Picture Library via Getty Images)Quick factsMilestone: Transistor patented Date: Oct. 3, 1950 Where: Bell Labs; Murray Hill, New Jersey Who: John Bardeen, Walter Brattain and William ShockleyOn Oct. 3, 1950, three scientists at Bell Labs in New Jersey received a U.S. patent for what would become one of the most important inventions of the 20th century — the transistor.The transistor was initially designed because AT&T wanted to improve its telephone network. At the time, AT&T amplified and transmitted phone signals using triodes. These devices encased a positive and negative terminal and a wire...
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A Debate Heats Up over California’s ‘Zone Zero’ Rules to Cut Home Losses to Flammable Vegetation
20 Oct
Science & Technology

A Debate Heats Up over California’s ‘Zone Zero’ Rules to Cut Home Losses to Flammable Vegetation

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After years of delay, California is rushing to finalize its rules requiring a five-foot ember-resistant perimeter around homes in areas of the state facing high wildfire risks. The science supporting the benefits of keeping this buffer zone, known as “zone zero,” clear of anything likely to catch fire and ignite the side of a building is well established. But as the California Board of Forestry and Fire Protection moves forward, they’re encountering pushback from an unexpected corner. A handful of scientists involved in fire research have questioned a piece of the proposal that would require removing non-tree vegetation in zone zero, noting that the role of landscaping plants in spreading fires, particularly if they’re hydrated and well-maintained, has not been sufficiently studied to support their complete removal. “The question isn’t whether zone zero is important because it is,”
said...
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