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SpaceX launches new cargo Dragon to Space Station for 100th successful Falcon 9 flight – TechCrunch

SpaceX launched its 21st Commercial Resupply Services (CRS) mission for NASA to the International Space Station on Sunday, using a brand new variant of its Dragon capsule spacecraft. This new cargo Dragon has greater carrying capacity and can dock fully autonomously with the Space Station, both improvements over the last iteration. This is the first […]…

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SpaceX launched its 21st Commercial Resupply Services (CRS) mission for NASA to the International Space Station on Sunday, using a brand new variant of its Dragon capsule spacecraft. This new cargo Dragon has greater carrying capacity and can dock fully autonomously with the Space Station, both improvements over the last iteration.

This is the first launch for this redesigned cargo Dragon, and also the first mission for SpaceX’s new series of CRS missions under a renewed contract with NASA. It’s carrying 6,400 lbs of both supplies for the Space Station and its crew, as well as experimental supplies and equipments for the research being done on the Station. This version of Dragon can carry 20% more than the last cargo spacecraft from SpaceX, and it also has twice the number of powered lockers for climate controlled transportation of experimental material.

The new cargo Dragon is a modified version of the Crew Dragon that delivered astronauts to the ISS during May’s Demo-2 mission, and during last month’s Crew-1 flight. Its modifications include removal of the Super Draco engines that are equipped on the crew version, which provide propulsion to carry the capsule quickly away from the Falcon 9 in case of the need for an early abort to protect the astronauts on board. It can also be reused up to five times, vs. just three for the last cargo version.

This launch was SpaceX’s 100th successful Falcon 9 take-off, and the company has flown 43 of those on recovered and refurbished boosters. Today’s mission also included a recovery of the Falcon 9 first stage, which has now flown four times in total. This marks the 68th successful booster landing for SpaceX so far.

Next up for CRS-21 is a rendezvous between the cargo Dragon and the ISS, which is st to take place Monday evening. The capsule will autonomous dock with one of the Station’s new international docking adapters, which are designed specifically to make this automated docking procedure possible. It’ll be the second Dragon docked at the station when it arrives, since SpaceX’s Crew Dragon is still there from last month’s crew mission.

Source: https://techcrunch.com/2020/12/06/spacex-launches-new-cargo-dragon-to-space-station-for-100th-successful-falcon-9-flight/

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Reduced microbial stability linked to soil carbon loss in active layer under alpine permafrost degra

Credit: NIEER Chinese researchers have recently discovered links between reduction in microbial stability and soil carbon loss in the active

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Chinese researchers have recently discovered links between reduction in microbial stability and soil carbon loss in the active layer of degraded alpine permafrost on the Qinghai-Tibet Plateau (QTP).

The researchers, headed by Prof. CHEN Shengyun from the Northwest Institute of Eco-Environment and Resources (NIEER) of the Chinese Academy of Sciences (CAS), and XUE Kai from University of Chinese Academy of Sciences, conducted a combined in-depth analysis of soil microbial communities and their co-occurrence networks in the active permafrost layer along an extensive gradient of permafrost degradation.

The QTP encompasses the largest extent of high-altitude mountain permafrost in the world. This permafrost is different than high-latitude permafrost and stores massive soil carbon. An often ignored characteristic of permafrost is that the carbon pool in the active layer soil is more active and directly affected by climate change, compared to deeper layers.

Triggered by climate warming, permafrost degradation may decrease soil carbon stability and induce massive carbon loss, thus leading to positive carbon-climate feedback. However, microbial-mediated mechanisms for carbon loss from the active layer soil in degraded permafrost still remain unclear.

In this study, the researchers found that alpine permafrost degradation reduced the stability of active layer microbial communities as evidenced by increased sensitivity of microbial composition to environmental change, promoted destabilizing network properties and reduced resistance to node or edge attacking of the microbial network.

They discovered that soil organic carbon loss in severely degraded permafrost is associated with increased microbial dissimilarity, thereby potentially contributing to a positive carbon feedback in alpine permafrost on the QTP.

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The results were published in PNAS in an article entitled “Reduced microbial stability in the active layer is associated with carbon loss under alpine permafrost degradation”.

This research was financially supported by the National Natural Science Foundation of China, the Strategic Priority Research Program (A) of CAS and the Second Tibetan Plateau Scientific Expedition and Research Program.

Triggered by climate warming, permafrost degradation may decrease soil carbon stability and induce massive carbon loss, thus leading to positive carbon-climate feedback. However, microbial-mediated mechanisms for carbon loss from the active layer soil in degraded permafrost still remain unclear.

Source: https://bioengineer.org/reduced-microbial-stability-linked-to-soil-carbon-loss-in-active-layer-under-alpine-permafrost-degra/

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Chipmaker TSMC says too early to say on Germany expansion

Taiwan Semiconductor Manufacturing Co Ltd (TSMC) (2330.TW) said on Monday that it was too early to say whether it will build factories in Germany and that talks were in early stages, as the EU seeks to reduce chip imports amid a supply shortage.

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The logo of Taiwan Semiconductor Manufacturing Co (TSMC) is pictured at its headquarters, in Hsinchu, Taiwan, Jan. 19, 2021. REUTERS/Ann Wang

TAIPEI, July 26 (Reuters) – Taiwan Semiconductor Manufacturing Co Ltd (TSMC) (2330.TW) said on Monday that it was too early to say whether it will build factories in Germany and that talks were in early stages, as the EU seeks to reduce chip imports amid a supply shortage.

The European Commission had held discussions with global chip giants, including Intel (INTC.O) and TSMC, as the EU seeks to boost semiconductor production and shield itself from shocks in the global supply chain. read more

Taiwan and TSMC, the world’s largest contract chip manufacturer, have become central in efforts to resolve the pandemic-induced chip shortage that has forced automakers to cut production and hurt manufacturers of smartphones, laptops and even appliances.

“We are currently doing reviews on Germany seriously, but it’s still in very early stages,” TSMC chairman Mark Liu told an annual shareholder meeting when asked about building chip fabrication plants in the EU country.

“We continue to communicate with our major clients in Germany to see whether this is most important and effective for our clients,” he said. “It’s too early to say.”

TSMC signalled in July plans to build new factories in the United States and Japan amid concern over the concentration of chipmaking capability in Taiwan, which produces most of the world’s most advanced chips and is geographically close to political rival China. read more

On TSMC’s $12 billion factory in the U.S. state of Arizona, Liu said the expansion would support client demand, especially in infrastructure and national security.

“Clients are the backing of our global expansion. We will move very cautiously,” Liu said, adding that the company’s customers would help share costs of overseas operations.

TSMC announced this year plans to invest $100 billion over the next three years to increase capacity, riding on what it called a “multiple years of growth opportunities”, as the COVID-19 pandemic and new technologies drove global demand for advanced chips.

Reporting By Yimou Lee. Editing by Gerry Doyle

Our Standards: The Thomson Reuters Trust Principles.

Taiwan and TSMC, the world’s largest contract chip manufacturer, have become central in efforts to resolve the pandemic-induced chip shortage that has forced automakers to cut production and hurt manufacturers of smartphones, laptops and even appliances.

Source: https://www.reuters.com/technology/chipmaker-tsmc-says-too-early-say-germany-expansion-2021-07-26/

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