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    VIRGOCosmos In Brief - Aktualní novinky vesmírného výzkumu v kostce
    VIRGO
    VIRGO --- ---
    Zářivá spirála s aktivním srdcem | ESO Česko
    http://www.eso.org/public/czechrepublic/news/eso1720/?lang

    Dalekohled ESO/VLT pořídil úchvatný záběr spirální galaxie s příčkou M 77 (Messier 77). Snímek sice zachycuje krásy galaxie
    například v podobě zářících ramen protkaných temnými oblaky prachu, ale není schopen odhalit pravou neklidnou povahu M 77.

    VIRGO
    VIRGO --- ---
    It is not clear what might have caused the AMC-9 satellite to become unresponsive.

    A satellite may be falling apart in geostationary orbit [Updated] | Ars Technica
    https://arstechnica.com/.../07/a-large-satellite-appears-to-be-falling-apart-in-geostationary-orbit/

    In the early hours of 1st July, the SES Satellite Control reestablished contact to AMC-9. SES and the satellite
    manufacturer Thales are working around the clock to evaluate the status and define the next steps.

    Tracking information received on 29 June had suggested that at least two separate objects were located in the vicinity
    of AMC-9. Their source has still to be determined. The new piece of information was included by Thales and SES in their
    investigations.

    VIRGO
    VIRGO --- ---
    Radio emission detected from a gamma-ray pulsar
    https://phys.org/news/2017-07-radio-emission-gamma-ray-pulsar.html

    A team of astronomers led by Yogesh Maan of the Netherlands Institute for Radio Astronomy (ASTRON) has discovered radio emission from the gamma-ray pulsar known as
    J1732−3131. The study, presented in a paper published June 26 on arXiv.org, provides more details about J1732−3131, which was originally detected as a radio-quiet pulsar.

    Located nearly 2,000 light years away from the Earth, J1732−3131 has a rotation period of about 196 milliseconds and is one such gamma-ray pulsar with hart-to-identify
    radio emission. The pulsar was found thanks to the data provided by the large area telescope (LAT) onboard NASA's Fermi Gamma-ray Space Telescope. So far, only a faint
    radio signal from this pulsar was detected at 34 MHz in 2012.

    More recently, Maan's team, motivated by previous faint detections, conducted follow-up observations of J1732−3131 between March 2014 and April 2015, using the Ooty radio
    telescope (ORT), located in Muthorai, India. This 530-meter-long and 30-meter-wide cylindrical paraboloid telescope allowed the researchers to observe the pulsar at 327 MHz,
    which resulted in detection of a faint periodic radio signal.

    VIRGO
    VIRGO --- ---
    APOD: 2017 July 5 - Aphelion Sunrise
    https://apod.nasa.gov/apod/ap170705.html

    VIRGO
    VIRGO --- ---
    Now in HD: the Earth’s Turbulent Core | CNRS News
    https://news.cnrs.fr/articles/now-in-hd-the-earths-turbulent-core

    Taking a deep dive into our planet’s turbulent core 3000 kilometers below surface level, geophysicists have
    emerged with high-definition 3D simulations showing the hidden mechanisms that govern the Earth’s magnetic field.

    Tequat_l299_st2ns_big67
    https://vimeo.com/223309160
    VIRGO
    VIRGO --- ---
    Artist's rendition of how the Tunguska event might have looked from the windows of a nearby airliner.

    https://futurism.com/anniversary-of-the-tunguska-event-what-really-happened/

    VIRGO
    VIRGO --- ---
    Teda letos probíhají doslova noktiluminiscenční orgie...

    After delayed start, magnificent noctilucent clouds are back in full effect
    https://watchers.news/2017/07/04/2017-noctilucent-clouds-season-late-start/

    VIRGO
    VIRGO --- ---
    BepiColombo’s journey to Mercury
    https://www.youtube.com/watch?v=0Yp-q1wqgig


    Animation visualising BepiColombo’s 7.2 year journey to Mercury.

    This animation is based on a launch date of 5 October, marking the start of the launch window in October 2018. It illustrates
    the gravity assist flybys that the spacecraft will make at Earth, Venus and Mercury before arriving at Mercury in December 2025.
    VIRGO
    VIRGO --- ---
    Fastest stars in the Milky Way are ‘runaways’ from another galaxy | University of Cambridge
    http://www.cam.ac.uk/research/news/fastest-stars-in-the-milky-way-are-runaways-from-another-galaxy

    A group of astronomers have shown that the fastest-moving stars in our galaxy – which are travelling so fast
    that they can escape the Milky Way – are in fact runaways from a much smaller galaxy in orbit around our own.

    The researchers, from the University of Cambridge, used data from the Sloan Digital Sky Survey and computer simulations to demonstrate
    that these stellar sprinters originated in the Large Magellanic Cloud (LMC), a dwarf galaxy in orbit around the Milky Way.

    These fast-moving stars, known as hypervelocity stars, were able to escape their original home when the explosion of one star in a binary
    system caused the other to fly off with such speed that it was able to escape the gravity of the LMC and get absorbed into the Milky Way.
    The results are published in the Monthly Notices of the Royal Astronomical Society, and will be presented today (5 July) at the National
    Astronomy Meeting in Hull.

    Astronomers first thought that the hypervelocity stars, which are large blue stars, may have been expelled from the centre of the Milky Way
    by a supermassive black hole. Other scenarios involving disintegrating dwarf galaxies or chaotic star clusters can also account for the speeds
    of these stars but all three mechanisms fail to explain why they are only found in a certain part of the sky.

    To date, roughly 20 hypervelocity stars have been observed, mostly in the northern hemisphere, although it’s possible that there are many more
    that can only be observed in the southern hemisphere.

    VIRGO
    VIRGO --- ---
    JAYME: Teda na první výstřel skvělý! :o
    JAYME
    JAYME --- ---
    JAYME: první obdobný pokus v noci. zatím nic moc. 300mm je prostě málo. příště zkusím aspoň stack více fotek dle návodu z netu.

    VIRGO
    VIRGO --- ---
    5 let od objevení Higgsova bosonu (od 20:35)
    Studio ČT24 — iVysílání — Česká televize
    http://www.ceskatelevize.cz/ivysilani/10101491767-studio-ct24/217411058060704
    VIRGO
    VIRGO --- ---
    Shocking case of indigestion in supermassive black hole
    http://www.ras.org.uk/news-and-press/3010-shocking-case-of-indigestion-in-supermassive-black-hole

    A multi-wavelength study of a pair of colliding galaxies has revealed the cause of a supermassive black hole's case of 'indigestion'. Results will be presented
    by Dr Hayden Rampadarath at the National Astronomy Meeting at the University of Hull. Once every couple of hundred million years, the small galaxy NGC 5195 falls
    into the outer arms of its larger companion, NGC 5194, also known as the Whirlpool galaxy. Both galaxies are locked in a gravitational dance that will result –
    billions of years in the future – in the formation of a single galaxy.

    As NGC 5195 plunges into the Whirlpool, matter streams onto the supermassive black hole at NGC 5195's centre and forms an accretion disc. The disc grows to a point
    where the supermassive black hole can no longer accrete or 'digest' efficiently and matter is blasted out into the surrounding interstellar medium. Last year, NASA's
    Chandra X-Ray observatory spotted arcs of X-ray emission that appeared to result from this 'force-feeding'.

    Now, new high-resolution images of the core of NGC 5195, taken with the e-MERLIN radio array, and archive images of the surrounding area from the Very Large Array
    (VLA), Chandra and the Hubble Space Telescope, reveal in detail how these blasts occur and spread. The study was led by astronomers at the University of Manchester's
    Jodrell Bank Centre for Astrophysics.

    VIRGO
    VIRGO --- ---
    'Little Cub' gives astronomers rare chance to see galaxy demise
    https://news.ucsc.edu/2017/07/little-cub-galaxy.html

    A primitive galaxy that could provide clues about the early universe has been spotted by astronomers as it begins to be consumed by a gigantic neighboring galaxy.

    The Little Cub galaxy--so called because it sits in the Ursa Major or Great Bear constellation--is being stripped of the gas needed to continue forming stars by
    its larger companion. The find means scientists now have a rare opportunity to observe a dwarf galaxy as its gas is removed by the effects of a nearby giant galaxy
    to learn more about how this process happens. As the Little Cub has remained almost pristine since its formation, scientists also hope its elements will reveal more
    about the chemical signature of the universe just minutes after the Big Bang. The research, carried out by UC Santa Cruz and Durham University, UK, is being presented
    on Tuesday, July 4, at the Royal Astronomical Society's National Astronomy Meeting.

    The Little Cub and its larger neighbor, a spiral galaxy called NGC 3359, are about 200 to 300 thousand light years apart, and approximately 50 million light years
    from Earth. Gas from the Little Cub is being stripped away by its interaction with NGC 3359, which has up to 10,000 times as many stars as the Little Cub and is
    similar to our Milky Way. By observing this cosmic feast, scientists hope to understand more about how and when gas is lost from smaller galaxies.

    VIRGO
    VIRGO --- ---
    Celestial Fireworks: Into Star Cluster Westerlund 2
    https://www.youtube.com/watch?v=dtY44sPNHcU
    VIRGO
    VIRGO --- ---
    Striking Gemini Images Point Juno Spacecraft Toward Discovery | Gemini Observatory
    http://gemini.edu/node/12679

    Very detailed Gemini Observatory images peel back Jupiter’s atmospheric layers to support
    the NASA/JPL Juno spacecraft in its quest to understand the giant planet’s atmosphere.

    VIRGO
    VIRGO --- ---
    Mars Exploration Rovers Update: Opportunity Sprains ‘Ankle’ but Perseveres on Walkabout
    http://www.planetary.org/...-missions/mer-updates/2017/06-mer-update-opportunity-sprains-ankle.html

    Sols 4747-4775


    VIRGO
    VIRGO --- ---
    NASA’S First Asteroid Deflection Mission Enters Next Design Phase
    https://www.nasa.gov/feature/nasa-s-first-asteroid-deflection-mission-enters-next-design-phase

    The first-ever mission to demonstrate an asteroid deflection technique for planetary defense -- the Double Asteroid Redirection
    Test (DART) -- is moving from concept development to preliminary design phase, following NASA’s approval on June 23.

    Dart Moon Collision
    https://www.youtube.com/watch?v=8zooPRmgUPI
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