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    VIRGOCosmos In Brief - Aktualní novinky vesmírného výzkumu v kostce
    VIRGO
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    Is the universe a sponge? - physicsworld.com
    http://physicsworld.com/cws/article/indepth/2016/nov/24/is-the-universe-a-sponge

    Does the large-scale universe look more like meatballs, like Swiss cheese or like a sponge? A meatball universe would be composed of isolated,
    disconnected regions of high density embedded in a connected low-density background. The Swiss cheese universe would be precisely the opposite:
    low-density isolated voids embedded in a high-density connected background. A sponge is neither of the above or, if you prefer, a compromise
    between the two. In a sponge both the low-density and high-density regions are each connected, and ideally both the sponge and its “complement”
    (the network of holes) are identical in character, at least from a topological point of view.

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    Shear brilliance: Computing tackles the mystery of the dark universe
    http://phys.org/news/2016-11-brilliance-tackles-mystery-dark-universe.html

    Scientists from The University of Manchester working on a revolutionary telescope project have harnessed the power of distributed computing
    from the UK's GridPP collaboration to tackle one of the Universe's biggest mysteries – the nature of dark matter and dark energy.

    Researchers at The University of Manchester have used resources provided by GridPP – who represent the UK's contribution to the computing grid
    used to find the Higgs boson at CERN – to run image processing and machine learning algorithms on thousands of images of galaxies from
    the international Dark Energy Survey.

    The Manchester team are part of the collaborative project to build the Large Synoptic Survey Telescope (LSST), a new kind of telescope currently
    under construction in Chile and designed to conduct a 10-year survey of the dynamic Universe. LSST will be able to map the entire visible sky.

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    +2
    Thomas Pesquet: "The view of our Soyuz from the Cupola. Isn’t she a beauty?"

    VIRGO
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    The Starship in our Future
    http://www.centauri-dreams.org/?p=36684
    VIRGO
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    +7
    It's been a long road...

    VIRGO
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    +1
    N4RC0T1C: Zdravím, díky moc. :)

    K odstavci 1: je to možné, koneckonců naše civilizace také využívá fyzikálních zákonů,
    viz třeba gravitační manévry sond v blízkosti planet (taková mládežnická verze
    benefitů díky gravitaci hmotných těles). Otázkou je, jak by se daná civilizace
    vypořádala s turbulentním prostředím, zářením, teplotama...
    Ale podstatné je, že žádné fyz. zákony využití dilatace nezakazují.

    U odstavce 2 je už vše "vachrlatější", protože jde o čiré dohady, navíc týkající se i ""psychologie""
    dané civilizace. A tady bohužel neznáme nic jiného, než tu naši, a ta nás přesvědčuje o opaku.
    Navíc "vyčůraně čekat" se nemusí vyplácet, protože dřív než shrábneme technol. vychytávky, můžeme
    schytat nějakou hodně nepříjemnou událost (výbuch blízké supernovy, asteroid, kolize těles
    u vícečetných hvězdných/planetárních systémů atp...)

    Jenže při těchto úvahách zase vycházíme jen a jen z našich zkušeností, což nemusí být směrodatné.
    VIRGO
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    Hned ta naše domovinka vypadá...tak nějak větší! :))

    VIRGO
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    +1
    ESA dnes vydala update k vyšetřování příčin havárie. Po úspěšném otevření brzdícího padáku a odhození tep.
    štítu nastal problém s gyroskopem. Palubní počítač zpracoval jeho výstup tak, že sonda je už na povrchu..

    Schiaparelli landing investigation makes progress / ExoMars / Space Science / Our Activities / ESA
    http://www.esa.int/...vities/Space_Science/ExoMars/Schiaparelli_landing_investigation_makes_progress
    Schiaparelli investigation update; crash site in color from HiRISE | The Planetary Society
    http://www.planetary.org/blogs/emily-lakdawalla/2016/11230922-schiaparelli-investigation.html

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    http://www.esa.int/...s_Integrated_Applications/EDRS/Start_of_service_for_Europe_s_SpaceDataHighway
    The European Data Relay System began servicing Europe’s Earth observing Copernicus programme yesterday, transferring observations
    in quasi-real time using cutting-edge laser technology.

    VIRGO
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    FSU researcher targeting mysteries of deep Earth | EurekAlert! Science News
    https://www.eurekalert.org/pub_releases/2016-11/fsu-frt_1111816.php
    New study finds water deeper in planet than scientists previously believed
    VIRGO
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    The AO Management Team Statement in Response to the NSF Draft Environmental Impact Statement (DEIS) for the Arecibo Observatory | Smart
    http://websites.suagm.edu/ao/?q=AO-Response-EIS

    VIRGO
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    +1
    Night Sky Network Webinar: Exploring Exoplanet Biosignatures | News | Astrobiology
    https://astrobiology.nasa.gov/news/night-sky-network-webinar-exploring-exoplanet-biosignatures/

    On November 16, 2016, Eddie Schwieterman, a NASA Postdoctoral Program (NPP) fellow with the NASA Astrobiology Institute
    (NAI) Alternative Earths team, and Giada Arney, NPP fellow at the NASA Goddard Space Flight Center and member of the NAI
    Virtual Planetary Laboratory, joined the Night Sky Network (NSN) for Exploring Exoplanet Biosignatures, Potential “False
    Positives” for Life, and the Case of Proxima Centauri b.

    NSN Webinar: Exploring Exoplanet Biosignatures
    https://www.youtube.com/watch?v=yxtRr9hL99M
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    Meteorite recovered in WA with the help of stargazers and science app - ABC News (Australian Broadcasting Corporation)
    http://www.abc.net.au/...16-11-22/meteorite-recovered-with-the-help-of-dedicated-star-gazers/8046880
    A meteorite estimated to be older than Earth has been recovered from a West Australian farm with the help of some enthusiastic stargazers and a phone app.
    The 1.15-kilogram meteor landed near Morawa on Halloween, discovered days later by members of Curtin University's Desert Fireball Network (DFN).

    VIRGO
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    New family of stars discovered in Milky Way shed new light on galaxy's formation
    http://phys.org/news/2016-11-family-stars-milky-galaxy-formation.html

    An astronomer from LJMU's Astrophysics Research Institute has discovered a new family of stars in the core
    of the Milky Way Galaxy which provides new insights into the early stages of the Galaxy's formation.

    The discovery has shed new light on the origins of globular clusters – which are concentrations of typically
    a million stars, formed at the beginning of the Milky Way's history.

    VIRGO
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    Asteroid That Killed Dinosaurs Made Earth's Surface Act Like Liquid, Scientists Say : The Two-Way : NPR
    http://www.npr.org/...0/scientists-say-dinosaur-killing-asteroid-made-earths-surface-act-like-liquid

    When the asteroid believed to have killed off the dinosaurs smashed into Earth some 66 million years ago,
    its sheer force made the planet's surface momentarily act like a liquid.

    The asteroid ripped open a 60-mile-wide hole. From miles deep in that abyss, rock hurtled upward to a height
    twice that of Mount Everest and then collapsed outward to form a ring of mountains.

    And it all happened within 5 minutes — 10 tops, as Sean Gulick, a geophysicist at the University of Texas,
    Austin, tells The Two-Way.

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    +2
    Top Ancient Sites for Stargazing
    http://www.nationalgeographic.com/travel/top-10/top-ancient-sites-stargazing/
    From petroglyphs to castles carved into hilltops, explore our night sky through our ancestors at these amazing archaeological sites.

    VIRGO
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    +2
    Gravity may have chased light in the early universe | New Scientist
    https://www.newscientist.com/article/2113797-gravity-may-have-chased-light-in-the-early-universe/

    It’s supposed to be the most fundamental constant in physics, but the speed of light may not always have been the same.
    This twist on a controversial idea could overturn our standard cosmological wisdom.

    In 1998, Joao Magueijo at Imperial College London, proposed that the speed of light might vary, to solve what cosmologists call the horizon problem. This says that
    the universe reached a uniform temperature long before heat-carrying photons, which travel at the speed of light, had time to reach all corners of the universe.

    The standard way to explain this conundrum is an idea called inflation, which suggests that the universe went through a short period of rapid expansion early on – so
    the temperature evented out when the cosmos was smaller, then it suddenly grew. But we don’t know why inflation started, or stopped. So Magueijo has been looking for
    alternatives.

    Now, in a paper to be published 28 November in Physical Review, he and Niayesh Afshordi at the Perimeter Institute in Canada have laid out a new version of the idea –
    and this one is testable. They suggest that in the early universe, light and gravity propagated at different speeds.

    If photons moved faster than gravity just after the big bang, that would have let them get far enough for the universe to reach an equilibrium temperature much more
    quickly, the team say.
    VIRGO
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    +4
    JO!!

    ESA Science & Technology: Two-year extensions confirmed for ESA's science missions
    http://sci.esa.int/cosmic-vision/58589-two-year-extensions-confirmed-for-esas-science-missions/
    ESA's Science Programme Committee (SPC) has today confirmed two-year mission extensions for nine scientific missions
    in which the Agency is participating. This secures their operations until the end of 2018.

    After a comprehensive review of their current operational status and the likely scientific return from each mission,
    the SPC decided to extend the operation of six ESA-led missions (Cluster, INTEGRAL, Mars Express, PROBA-2, SOHO and
    XMM-Newton) from 1 January 2017 to 31 December 2018.

    The go-ahead was also given to continue ESA's contributions to the operations of three international collaborative
    missions: the Hubble Space Telescope and the Interface Region Imaging Spectrograph (IRIS), which are both led by NASA,
    as well as Hinode, which is a Japanese-led mission.

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    Planetary Science Institute:

    Amateur and professional astronomers are invited to provide observations of three comets that will make close approaches to Earth over the next two years.
    The three comets are 41P/Tuttle-Giacobini-Kresak, 45P/Honda-Mrkos-Pajdusakova, and 46P/Wirtanen. The comets will pass by Earth at distances ranging from
    0.08 AU to 0.15 AU. AU or Astronomical Unit is the distance from the Sun to Earth. Such close approaches of three comets within two years are rare and
    typically occur only once every few decades.

    http://www.psi.edu/news/4*P

    VIRGO
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    North Port Police Department Patrol car cameras capture fireball in sky over Florida on November 21, 2016
    NPPD Patrol car cameras capture fireball in sky
    https://www.youtube.com/watch?v=iVH7wiJCo9A&feature=youtu.be
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