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    VIRGOCosmos In Brief - Aktualní novinky vesmírného výzkumu v kostce
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    Distant galaxy sends out 15 high-energy radio bursts | Berkeley News
    http://news.berkeley.edu/2017/08/30/distant-galaxy-sends-out-15-high-energy-radio-bursts/

    reakthrough Listen, an initiative to find signs of intelligent life in the universe, has detected 15 brief but
    powerful radio pulses emanating from a mysterious and repeating source – FRB 121102 – far across the universe.

    Fast radio bursts are brief, bright pulses of radio emission from distant but largely unknown sources, and FRB
    121102 is the only one known to repeat: more than 150 high-energy bursts have been observed coming from the object,
    which was identified last year as a dwarf galaxy about 3 billion light years from Earth.

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    Repríza JPL telkonu "Grande Finale"
    NASA Live: JPL - Previewing Cassini's Grand Finale
    https://www.youtube.com/watch?v=Y5MqidJ_HfA
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    Researchers hypothesize how the universe became filled with light | Iowa Now
    https://now.uiowa.edu/2017/08/researchers-hypothesize-how-universe-became-filled-light

    Black holes may have punctured darkened galaxies, allowed light to escape

    Soon after the Big Bang, the universe went completely dark.

    The intense, seminal event that created the cosmos churned up so much hot, thick gas that light was completely trapped.
    Much later—perhaps as many as one billion years after the Big Bang—the universe expanded; became more transparent;
    and eventually filled up with galaxies, planets, stars, and other objects that give off visible light. That’s the universe
    we know today.

    How it emerged from the cosmic dark ages to a clearer, light-filled state remains a mystery.

    In a new study, researchers at the University of Iowa offer a theory of how that happened. They think black holes that dwell
    in the center of galaxies fling out matter so violently that the ejected material pierces its cloudy surroundings, allowing light
    to escape. The researchers arrived at their theory after observing a nearby galaxy from which ultraviolet light is escaping.

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    ALMA nalezla mohutné skryté zásoby plynu ve vzdálené galaxii | ESO Česko
    http://www.eso.org/public/czechrepublic/news/eso1727/?lang

    První pozorování molekul CH+ ve vzdálené galaxii s aktivní hvězdotvorbou poskytují nový pohled na historii vzniku hvězd ve vesmíru

    Zooming in on the Cosmic Eyelash
    https://www.youtube.com/watch?v=4KytNHz30AY


    Astronomové využili radioteleskop ALMA k pozorování turbulentních rezervoárů chladného plynu obklopujících vzdálené galaxie, ve kterých probíhá
    prudký vývoj nových hvězd. Díky tomu, že se vědcům poprvé v historii podařilo v těchto galaxiích detekovat molekulu CH+, otevírá tento výzkum
    zcela nové okno umožňující zkoumat kritické fáze vývoje hvězd ve vesmíru. Přítomnost těchto molekul přináší nový pohled na způsob, jakým galaxie
    dosáhnou prodloužení období bouřlivé hvězdotvorby. Výsledky byly publikovány v prestižním vědeckém časopise Nature.

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    TOXYGEN: Včerejší 10h srážení iontů olova na LHC (detektor ALICE provádí srážky
    většinou poslední týden v měsíci), a úhrnná vzdálenost, kterou částice urazily.
    TOXYGEN
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    VIRGO: co to je?
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    Zajímavý vývoj kardinální otázky...
    Cassini hints at young age for Saturn's rings - BBC News
    http://www.bbc.com/news/science-environment-41091333

    The spectacular rings of Saturn may be relatively young, perhaps just 100 million years or so old.
    This is the early interpretation of data gathered by the Cassini spacecraft on its final orbits of the giant world.
    If confirmed, it means we are looking at Saturn at a very special time in the age of the Solar System.
    Cassini is scheduled to make only two more close-in passes before driving itself to destruction in Saturn's atmosphere on 15 September.

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    What Spacecraft Saw During the 2017 Solar Eclipse
    https://www.youtube.com/watch?v=7RmczjiDlwE
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    The end-Cretaceous mass extinction was rather unpleasant | Ars Technica
    https://arstechnica.com/science/2017/08/the-end-cretaceous-mass-extinction-was-rather-unpleasant/

    Climate simulation shows how long soot blotted out the Sun.

    There are a few hellish episodes in Earth’s unfathomably long history that make even Hollywood’s most bombastic disaster movie
    look like a sunny picnic. The end-Cretaceous extinction is the most well-known, since it wiped out the dinosaurs (minus the birds,
    of course) and opened the door for the mammalian revolution—which most human beings regard as generally a good thing.

    Though the story is probably familiar, there are still significant questions about exactly what happened during that cataclysm.
    Many species were seemingly in trouble before that colossal meteoroid crashed into the coastal Yucatan, perhaps partly because of
    a long-lived series of massive volcanic eruptions in what is now India. This has led some to question whether the impact was as
    deadly as it's made out to be. But we've also filled in some details of just how the meteoroid impact would mess up the Earth,
    and these include mind-blowing tsunamis, rampant wildfires, and see-sawing climate effects. So how lethal was the impact?

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    VIRGO: NASA’s Johnson Space Center Closes Through Labor Day for Tropical Storm Harvey
    https://www.nasa.gov/...sa-s-johnson-space-center-closes-through-labor-day-for-tropical-storm-harvey

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    Kepler Stares at Neptune
    https://www.youtube.com/watch?v=jUvcaYFEWac
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    Life 3.0: Being Human in the Age of Artificial Intelligence
    https://www.youtube.com/watch?v=vnyBrm7E2nE


    Max Tegmark and his wife Meia discuss his new book "Life 3.0: Being Human in the Age of Artificial Intelligence".

    The Universes of Max Tegmark
    http://space.mit.edu/home/tegmark/ai.html
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    Bad Astronomy | Astronomers discover a new type of star: BLAPs
    http://www.syfy.com/syfywire/astronomers-discover-a-new-type-of-star-blaps

    t’s not every day (or night, I suppose) that astronomers discover a new kind of star. In this case, it’s not so much that the stars are totally different from other stars,
    and if you saw one you’d know right away something was amiss. Instead, these stars behave differently, in a way never seen before. And because of that, it took a special
    kind of survey to even find them at all.

    The stars are called Blue Large-Amplitude Pulsators, or BLAPs, an acronym that is both ridiculous and makes me very happy. They’re called this because a) they’re blue,
    and 2) they pulsate, changing in brightness by the relatively large amount of 20 – 45%. That’s a lot. If the Sun did this we’d be alternately cooked and frozen.

    Not only that, but these stars brighten and dim really quickly: They can go from one extreme to the other and back again in just over 20 minutes. Of the dozen or so found,
    the shortest one pulses with a period of 23 minutes, and the longest 39. That’s incredibly fast. These are stars: Vast spinning balls of gas that tip the cosmic scales at
    an octillion tons or ten. Changing something that size that rapidly and by that much is fearsome.

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    Volunteers find ‘spiders’ on Mars - but not where they expected | University of Oxford
    http://www.ox.ac.uk/...-08-29-volunteers-find-%E2%80%98spiders%E2%80%99-mars-not-where-they-expected

    Armchair astronomers have helped Oxford University scientists discover landforms known as ‘spiders’ on parts of Mars where they were previously thought not to exist.

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    10h šichta. Až někam za Kuiperův pás...

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    Jen takový lehký flastřík, ale radost velká! Dnešní potvrzení rezervace letenky jarní výpravy na La Palma! :))

    La Palma - Visits - Observatory - Astronomy - Tours - Astrotourism | astrolapalma.com
    http://www.astrolapalma.com/en/content/visits-observatorio-roque-de-los-muchachos



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    James Webb Space Telescope Surrounded by Rising Floodwaters - Scientific American
    https://www.scientificamerican.com/...e/james-webb-space-telescope-surrounded-by-rising-floodwaters/

    Isolated in a giant thermal vacuum chamber, NASA’s $8.6 billion next-generation observatory is riding out the worst of Hurricane Harvey

    As of this writing, there have been no reports of flooding at Building 32 or other critical JSC facilities, and the center possesses several
    electric generators as backup in the event of a power outage. JSC lies 13 feet above sea level at its lowest point, and 22 feet at its highest—
    making it a relatively lofty point in the surrounding landscape, much of which is already submerged beneath rising floodwaters.
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    https://www.nasa.gov/feature/jpl/saturn-plunge-nears-for-cassini-spacecraft

    The spacecraft is expected to lose radio contact with Earth within about one to two minutes after beginning its descent into Saturn's upper atmosphere.
    But on the way down, before contact is lost, eight of Cassini's 12 science instruments will be operating. In particular, the spacecraft‘s ion and neutral
    mass spectrometer (INMS), which will be directly sampling the atmosphere's composition, potentially returning insights into the giant planet's formation
    and evolution. On the day before the plunge, other Cassini instruments will make detailed, high-resolution observations of Saturn's auroras, temperature,
    and the vortices at the planet's poles. Cassini's imaging camera will be off during this final descent, having taken a last look at the Saturn system
    the previous day (Sept. 14).

    Cassini: A Saturn Odyssey
    https://www.youtube.com/watch?v=fHaaIX-iSqM
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    První JPL telkon začíná s mírným zpožděním (technické potíže):

    NASA JPL Live
    https://www.youtube.com/watch?v=X4fwyphQqhI


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    https://www.nasa.gov/...nasa-team-passes-major-technological-milestone-for-characterizing-exoplanets

    NASA researchers say they have passed a major milestone in their quest to mature more powerful tools for directly detecting and analyzing the atmospheres
    of giant planets outside the solar system — one of the observational goals of NASA’s proposed Wide-Field Infrared Space Telescope, also known as WFIRST.

    In tests conducted at the High-Contrast Imaging Testbed at NASA’s Jet Propulsion Laboratory, or JPL, in Pasadena, California — one of the world’s most
    advanced testbeds of its kind — researchers created what they call a region of very deep contrast between a simulated star and its planet. They also
    demonstrated the ability to detect and analyze the planet’s faint light over a relatively large portion of the visible to near-infrared wavelength band.

    An instrument developed by scientists at NASA’s Goddard Space Flight Center in Greenbelt, Maryland — the Prototype Imaging Spectrograph for Coronagraphic
    Exoplanet Studies, or PISCES — played an important role in the demonstration, showing that it could separate light of one or more Jupiter-sized exoplanets
    by their wavelength (color) and record the data at every position around a star.

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