суббота, 29 декабря 2018 г.

Brimham Rocks Photoset 2, Yorkshire, 24.12.18.Amazing Ice Age water and wind shaped rock...

Brimham Rocks Photoset 2, Yorkshire, 24.12.18.

Amazing Ice Age water and wind shaped rock formations.

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Youthful Healing When a young person injures a muscle playing…

Youthful Healing

When a young person injures a muscle playing football, it’s often not long before they’re fit again and back on the pitch. But should the same injury hit an older person, recovery can take much longer. New research has found a key substance – a protein called Klotho – that flies into action following injury in youngsters, but stays relatively inactive in older people. To test whether it really does drive recovery, the team genetically engineered mice to lack Klotho, and compared their recovery to normal healthy mice. Their muscle tissue took much longer to heal (right, with tears in the green muscle tissue still visible) than in mice naturally aided by the healing powers of Klotho (left, with well healed, consistent muscle fibres). The researchers even managed to improve regeneration in older mice by providing Klotho, which means it might one day help get older people get back up and running faster.

Written by Anthony Lewis

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2018 December 29 New Horizons at Ultima Thule Illustration…

2018 December 29

New Horizons at Ultima Thule
Illustration Credit: Carlos Hernandez for NASA, Johns Hopkins Univ./APL, Southwest Research Institute

Explanation: When we celebrate the start of 2019, on January 1 the New Horizons spacecraft will flyby Ultima Thule. A world of the Kuiper belt 6.5 billion kilometers from the Sun, the nickname Ultima Thule (catalog designation 2014 MU69) fittingly means “beyond the known world”. Following its 2015 flyby of Pluto, New Horizons was targeted for this journey, attempting the most distant flyby for a spacecraft from Earth by approaching Ultima Thule to within about 3500 kilometers. The tiny world itself is about 30 kilometers in size. This year, an observing campaign with Earth-based telescopes determined the shape of the object to be a contact binary or a close binary sytem as in this artist’s illustration. New Horizons will image close up its unexplored surface in the dim light of the distant Sun.

∞ Source: apod.nasa.gov/apod/ap181229.html

Swiss Air Force – Fighter’s ready to do extra hours

Swiss Air Force patch.

Dec. 28, 2018

From January 1, 2019, the jets of the army will monitor the Swiss sky from 6am to 10pm every day of the year. Before a 24h service expected at the end of 2020.

 Swiss Air Force F / A-18C

Remember: in February 2014 (related article): during the hijacking of the Boeing 767-300 of Ethiopian Airlines that landed on the tarmac of Geneva airport, Swiss planes, warned early in the night, had not intervened . It was jets from the French and Italian army that had escorted the aircraft into the Swiss sky. Reason invoked: Swiss aircraft flew only during office hours! But things are changing.

As of January 1st, the availability of the air policing service will take a new step by expanding flight hours from 6am to 10pm, 365 days a year, including weekends and holidays. This will cover more than 90% of air traffic in the Swiss sky, writes Thursday the Federal Department of Defense, Protection of Population and Sports (DDPS).

And this surveillance will soon be 100% complete. At the end of 2020, the Swiss Army will provide coverage 24 hours a day, 365 days a year, thanks to two armed fighter planes ready to take off in a maximum of 15 minutes. These will be based in Payerne (VD). But during the closing time of the runway, planes will take off from Emmen or Meiringen.

Swiss Air Force FA-18C vs German MiG-29 (Dogfight training)

Both devices will be assigned to Hot Missions and Live Missions. In the first case, these are commitments triggered by the presence of aircraft that violate the sovereignty of Swiss airspace yes who commit serious offenses. In the second case, these are spot checks of official aircraft belonging to foreign States which, in order to fly over Switzerland, require a diplomatic flight clearance.

Related article:

No F/A-18 outside office hours

Image, Video, Text, Credits: ATS/DDPS/Orbiter.ch Aerospace/Roland Berga.

Best regards, Orbiter.chArchive link

Psychedelic Salt Mine, Russia | #Geology #GeologyPage #Mine…

Psychedelic Salt Mine, Russia | #Geology #GeologyPage #Mine #Russia

Hundreds of feet below a Russian city is an abandoned salt mine which might as well be the inside of a rave.

The walls are covered with psychedelic patterns, caused by the natural layers of mineral carnallite creating swirls throughout the coloured rock.

Read more & More Photos: http://www.geologypage.com/2016/10/psychedelic-salt-mine-russia.html

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Seeds of Giant Galaxies formed in the Early Universe

Figure 1: A wide field-of-view false-color image of a massive quiescent galaxy taken by Surpime-Cam on the Subaru Telescope (main image) and a high resolution close-up (inset) by IRCS (Infrared Camera and Spectrograph) on the Subaru Telescope. The yellow circle shows the point spread function of this observation corrected with the AO188 adaptive optics system. (Credit: NAOJ)

An international research team has shown that the largest galaxies in the Universe may have started out as ultra-dense objects in the very early Universe that then expanded over time.

Modern galaxies show a wide diversity, including dwarf galaxies, irregular galaxies, spiral galaxies, and massive elliptical galaxies. This final type, massive elliptical galaxies, provides astronomers with a puzzle. Although they are the most massive galaxies with the most stars, almost all of their stars are old. At some time during the past the progenitors of massive elliptical galaxies must have rapidly formed many stars and then stopped for some reason.

Fortunately, the finite speed of light gives scientists a way to turn back the clock and view the early Universe. If a galaxy is located 12 billion light-years away, then light from that galaxy must have traveled for 12 billion years before it reached Earth. This means that the light we observe today must have left the galaxy 12 billion years ago. In other words the light is the image of what the galaxy looked like 12 billion years ago. By observing galaxies at various distances from Earth, astronomers can reconstruct the history of the Universe.

An international team including researchers from the National Astronomical Observatory of Japan (NAOJ), the University of Tokyo, and Copenhagen University used data from NAOJ’s Subaru Telescope and other telescopes to search for galaxies located 12 billion light-years away. Among this sample they identified massive quiescent galaxies, meaning massive galaxies without active star formation, as the probable progenitors of modern giant elliptical galaxies. It is surprising that mature giant galaxies already existed very early, when the Universe was only about ~13% of its current age.v The team then used the Subaru Telescope to perform high resolution follow-up observations in near infrared for the 5 brightest massive quiescent galaxies located 12 billion light-years away.

The results show that although the massive quiescent galaxies are compact (only about 2% the size of the Milky Way) they are almost as heavy as modern galaxies. This means that to become modern giant elliptical galaxies they must puff up about 100 times in size, but only increase in mass by about 5 times. Comparing the observations to toy models, the team showed that this would be possible if the growth was driven, not by major mergers where two similar galaxies merge to form a larger one, but by minor mergers where a large galaxy cannibalizes smaller ones.

Figure 2: The stellar mass (x-axis) and size (y-axis) relation derived assuming that the most massive galaxies at each epoch are the progenitors of the modern most massive giant elliptical galaxies (red). Gray solid and dashed curves show the size evolution driven by many minor mergers and major mergers, respectively. (Credit: NAOJ)

“We are very excited about the implications of our findings,” explains corresponding author Mariko Kubo, a post-doctoral researcher at NAOJ. “But we are now at the resolution limit of existing telescopes. The superior spatial resolution of the Thirty Meter Telescope currently under development will allow us to study the morphologies of distant galaxies more precisely. For more distant galaxies beyond 12 billion light-years, we need the next generation James Webb Space Telescope.”

These results appeared as Kubo et al. 2018,  “The Rest-frame Optical Sizes of Massive Galaxies with Suppressed Star Formation at z∼4” in the Astrophysical Journal on November 20, 2018. This research paper is also available as a preprint (Kubo et al., arXiv:1810.00543) on arxiv.org. This research is supported by KAKENHI Grant Numbers JP15K17617, JP16K17659, and JP18K13578.

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Folding 😍😍 | #Geology #GeologyPage #Fold Folds in alternating…

Folding 😍😍 | #Geology #GeologyPage #Fold

Folds in alternating layers of limestone and chert in Crete, Ágios Pávlos in the south of Crete, Greece

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Titanite on Albite | #Geology #GeologyPage #Mineral Locality:…

Titanite on Albite | #Geology #GeologyPage #Mineral

Locality: Tormiq valley, Haramosh Mts., Skardu District, Baltistan, Northern Areas, Pakistan

Size: 4.8 x 3.7 x 1.5

Photo Copyright © Saphira Minerals

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Pyrite on Quartz | #Geology #GeologyPage #Mineral Locality:…

Pyrite on Quartz | #Geology #GeologyPage #Mineral

Locality: Mundo Nuevo Mine, Mundo Nuevo, Huamachuco, Sanchez Carrion, La Libertad, Peru

Size: 11.1 x 8.5 x 5.7

Photo Copyright © Saphira Minerals

Geology Page



Hope for Ebola In the Democratic Republic of the Congo, the…

Hope for Ebola

In the Democratic Republic of the Congo, the current outbreak of Ebola virus – shown here coloured green attacking a human cell (blue) – has infected nearly 500 people and killed approximately half of them. While the outbreak is nowhere near the scale of the 2014–2016 outbreak in West Africa, which killed more than 11,000 people, it’s the worst in the country’s history and it’s not over. Indeed, cases of the disease have recently been reported in Butembo, a city of more than a million residents. Unlike the earlier West African outbreak, however, there are some promising, albeit largely untested, clinical interventions available. A new vaccine is being widely deployed, for example, and, for people already infected, trials of novel treatments – including monoclonal antibodies and an antiviral drug – have recently begun. Now, it’s a case of waiting to see whether any of these approaches are effective and whether lives can be saved.

Written by Ruth Williams

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https://t.co/hvL60wwELQ — XissUFOtoday Space (@xufospace) August 3, 2021 Жаждущий ежик наслаждается пресной водой после нескольких дней в о...