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    VIRGOCosmos In Brief - Aktualní novinky vesmírného výzkumu v kostce
    VIRGO
    VIRGO --- ---
    As Oceans Alkalized, Life Developed Bones and Shells - Astrobiology Magazine
    http://www.astrobio.net/news-exclusive/oceans-alkalized-life-developed-bones-shells/

    VIRGO
    VIRGO --- ---
    Moon's Shadow Races Across the Clouds! Astonishing Solar Eclipse Time Lapse
    https://www.youtube.com/watch?v=13rVSwWIocE
    VINCENT_BU
    VINCENT_BU --- ---
    Z Technetu na iDnes:
    Když se vědci neudrží: astronomové zřejmě dopředu prozradili velký objev
    Nedávno zrozený obor „gravitační astronomie“ si podle zákulisních informací připsal důležitý milník: vědcům se zřejmě poprvé podařilo pozorovat stejnou událost běžným teleskopem a zároveň i detektory gravitačních vln. Co přesně viděli, zatím nevíme, ale nejspíš vznikalo zlato.
    XCHAOS
    XCHAOS --- ---
    SLAC Experiment Proves It Rains Diamonds On Uranus and Neptune - Slashdot
    https://science.slashdot.org/...32225/slac-experiment-proves-it-rains-diamonds-on-uranus-and-neptune
    VIRGO
    VIRGO --- ---
    Cassini: The Grand Finale: Cassini's 'Inside-Out' Rings Movie
    https://saturn.jpl.nasa.gov/resources/7751/

    This movie sequence of images from NASA's Cassini spacecraft offers a unique perspective on Saturn’s ring system. Cassini captured the images from within
    the gap between the planet and its rings, looking outward as the spacecraft made one of its final dives through the gap as part of the mission's Grand Finale.

    Using its wide-angle camera, Cassini took the 21 images in the sequence over a span of about four minutes during its dive through the gap on Aug. 20, 2017.
    The images have an original size of 512 x 512 pixels; the smaller image size allowed for more images to be taken over the short span of time.

    VIRGO
    VIRGO --- ---
    Astronomers let gaseous disks tilt and shrink in virtual wind tunnel - Radboud University
    http://www.ru.nl/english/news-agenda/news/vm/imapp/astrophysics/2017/gaseous-disks-wind-tunnel/

    A team of Dutch astronomers, led by Thomas Wijnen from Radboud University, has managed to tilt and shrink gaseous disks, in which planets form,
    in a virtual wind tunnel. The research helps in finding an explanation for the tilted planetary orbits in our own solar system, for example.
    Wijnen and his colleagues publish their findings in two articles in the journal Astronomy & Astrophysics.

    Tilting of a protoplanetary disc
    https://www.youtube.com/watch?v=hsEFHAoGBg0
    VIRGO
    VIRGO --- ---
    Sandia National Laboratories: News Releases : Black hole models contradicted by hands-on tests at Sandia’s Z machine
    https://share-ng.sandia.gov/news/resources/news_releases/black_hole/#.WaRlmTOg9hE

    A long-standing but unproven assumption about the X-ray spectra of black holes in space has been
    contradicted by hands-on experiments performed at Sandia National Laboratories’ Z machine.

    Z, the most energetic laboratory X-ray source on Earth, can duplicate the X-rays surrounding black
    holes that otherwise can be watched only from a great distance and then theorized about.

    “Of course, emission directly from black holes cannot be observed,” said Sandia researcher and lead
    author Guillaume Loisel, lead author for a paper on the experimental results, published in August
    in Physical Review Letters. “We see emission from surrounding matter just before it is consumed by
    the black hole. This surrounding matter is forced into the shape of a disk, called an accretion disk.”

    The results suggest revisions are needed to models previously used to interpret emissions from matter
    just before it is consumed by black holes, and also the related rate of growth of mass within the black
    holes. A black hole is a region of outer space from which no material and no radiation (that is, X-rays,
    visible light, and so on) can escape because the gravitational field of the black hole is so intense.

    VIRGO
    VIRGO --- ---
    Astronomy and Space News - Astro Watch: Proposed Astrophysics Mission to Conduct the First Infrared Spectral Survey of the Entire Sky
    http://www.astrowatch.net/2017/08/proposed-astrophysics-mission-to.html

    NASA has recently chosen six proposed astrophysics mission for concept studies. Among them is the Spectro-Photometer for the History of the Universe,
    Epoch of Reionization, and Ices Explorer, or SPHEREx, which aims to unlock the mysteries of the universe by performing the first all-sky spectral survey.

    If selected for construction and launch, the survey provided by the SPHEREx spacecraft could provide crucial insights into the origin and evolution of
    galaxies, and could help scientists explore whether planets around other stars could harbor life.

    “SPHEREx will produce the first infrared spectral survey of the entire sky. This survey will have broad applications in astronomy, providing rich spectra
    of galaxies, quasars, stars, clusters and our Galaxy. Following the wide usage of previous all-sky surveys like the Infrared Astronomical Satellite (IRAS)
    and the Wide-field Infrared Survey Explorer (WISE), SPHEREx will have a lasting value for the astronomy community,” James Bock, Principal Investigator of
    SPHEREx at the California Institute of Technology (Caltech), told Astrowatch.net.

    VIRGO
    VIRGO --- ---
    VLA Reveals Distant Galaxy’s Magnetic Field – National Radio Astronomy Observatory
    https://public.nrao.edu/news/vla-reveals-magnetic-field/

    With the help of a gigantic cosmic lens, astronomers have measured the magnetic field of a galaxy nearly five billion light-years away.
    The achievement is giving them important new clues about a problem at the frontiers of cosmology — the nature and origin of the magnetic
    fields that play an important role in how galaxies develop over time.

    The scientists used the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) to study a star-forming galaxy that lies
    directly between a more-distant quasar and Earth. The galaxy’s gravity serves as a giant lens, splitting the quasar’s image into two
    separate images as seen from Earth. Importantly, the radio waves coming from this quasar, nearly 8 billion light-years away, are
    preferentially aligned, or polarized.

    “The polarization of the waves coming from the background quasar, combined with the fact that the waves producing the two lensed images
    traveled through different parts of the intervening galaxy, allowed us to learn some important facts about the galaxy’s magnetic field,”
    said Sui Ann Mao, Minerva Research Group Leader for the Max Planck Institute for Radio Astronomy in Bonn, Germany.

    VINCENT_BU
    VINCENT_BU --- ---
    KIC 8462852 Boyajian's Star Update For 08/27/17
    https://www.youtube.com/watch?v=oZePdhNbJHA
    HADIAK
    HADIAK --- ---
    VIRGO: dik ;-)
    VIRGO
    VIRGO --- ---
    HADIAK: Tak to je fakt nádhera!
    HADIAK
    HADIAK --- ---
    Jupiter s Mesiacom :)

    VIRGO
    VIRGO --- ---
    Cassini: The Grand Finale: NASA Announces Cassini End-of-Mission Activities
    https://saturn.jpl.nasa.gov/news/3104/nasa-announces-cassini-end-of-mission-activities/

    On Sept. 15, NASA's Cassini spacecraft will complete its remarkable story of exploration with an intentional plunge into Saturn's atmosphere,
    ending its mission after nearly 20 years in space. News briefings, photo opportunities and other media events will be held at NASA's Jet
    Propulsion Laboratory in Pasadena, California, and will air live on NASA Television and the agency's website.

    NASA also will hold a media teleconference Tuesday, Aug. 29 to preview activities for Cassini during its final two weeks.

    Media: https://www.nasa.gov/cassinitelecon
    VIRGO
    VIRGO --- ---
    SwRI-led study captures science data from Great American Eclipse | SwRI
    http://www.swri.org/press-release/swri-led-study-captures-science-data-great-american-eclipse

    Two NASA WB-57F research aircraft successfully tracked the August 21 solar eclipse as part of a NASA project led by Southwest
    Research Institute (SwRI) to study the solar corona and Mercury’s surface.

    “The visible and infrared data look spectacular,” said SwRI senior research scientist Dr. Amir Caspi, principal investigator of
    the project. “We’re already seeing some surprising features, and we are very excited to learn what the detailed analysis will reveal.”

    The team began initial analysis of the data gathered during the flights, showing clear images of the Sun’s outer atmosphere and thermal
    images of Mercury’s surface. Initial results are expected to be released in a few months and presented at the fall meeting of the American
    Geophysical Union in December 2017.

    VIRGO
    VIRGO --- ---
    Kepler satellite discovers variability in the Seven Sisters
    http://www.ras.org.uk/...-and-press/3038-kepler-satellite-discovers-variability-in-the-seven-sisters

    The Seven Sisters, as they were known to the ancient Greeks, are now known to modern astronomers as the Pleiades star cluster –
    a set of stars which are visible to the naked eye and have been studied for thousands of years by cultures all over the world.
    Now Dr Tim White of the Stellar Astrophysics Centre at Aarhus University and his team of Danish and international astronomers
    have demonstrated a powerful new technique for observing stars such as these, which are ordinarily far too bright to look at
    with high performance telescopes. Their work is published in the Monthly Notices of the Royal Astronomical Society.

    Using a new algorithm to enhance observations from the Kepler Space Telescope in its K2 Mission, the team has performed
    the most detailed study yet of the variability of these stars. Satellites such as Kepler are engineered to search for planets
    orbiting distant stars by looking for the dip in brightness as the planets pass in front, and also to do asteroseismology,
    studying the structure and evolution of stars as revealed by changes in their brightness.
    structure and evolution of stars as revealed by changes in their brightness.

    PANAAK
    PANAAK --- ---
    A VERY EXCITING LIGO-VIRGO OBSERVING RUN IS DRAWING TO A CLOSE AUGUST 25

    25 August 2017 -- The Virgo and LIGO Scientific Collaborations have been observing since November 30, 2016 in the second Advanced Detector Observing Run ‘O2’ , searching for gravitational-wave signals, first with the two LIGO detectors, then with both LIGO and Virgo instruments operating together since August 1, 2017. Some promising gravitational-wave candidates have been identified in data from both LIGO and Virgo during our preliminary analysis, and we have shared what we currently know with astronomical observing partners. We are working hard to assure that the candidates are valid gravitational-wave events, and it will require time to establish the level of confidence needed to bring any results to the scientific community and the greater public. We will let you know as soon we have information ready to share.

    LSC News
    http://www.ligo.org/news/index.php#O2end

    // something's cooking, but who knows what..?
    VIRGO
    VIRGO --- ---
    Konečně doma z práce. Víno ulito, konečně si vychutnám "multimedia čtvrtek"... :)
    Moc se těším na Deep A: WASP-121b

    WASP-121b - A Scorching Hot Atmosphere
    https://www.youtube.com/watch?v=Jl1I9L8xemk


    FB Live: Frank Drake talks about the Aug. 25th 40th anniversary of the Golden Record.

    https://www.facebook.com/SETIInstitute/videos/10155494936395535
    VIRGO
    VIRGO --- ---
    Cassini: The Wonder of Saturn
    https://www.youtube.com/watch?v=htOoWJmYVtQ
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