• úvod
  • témata
  • události
  • tržiště
  • diskuze
  • nástěnka
  • přihlásit
    registrace
    ztracené heslo?
    VIRGOCosmos In Brief - Aktualní novinky vesmírného výzkumu v kostce
    VIRGO
    VIRGO --- ---
    Poslední snímky

    Impact Site: Infrared Image



    Enceladus Setting Behind Saturn

    VIRGO
    VIRGO --- ---
    VIRGO
    VIRGO --- ---
    Díky!



    VIRGO
    VIRGO --- ---
    Watch live #360video from @CassiniSaturn mission control as final signals arrive. 4amPT/1100 UTC!

    NASA Mission Control Live: Cassini’s Finale at Saturn (360 video)
    https://www.youtube.com/watch?v=o3_byIkXF7Q&feature=youtu.be


    VIRGO
    VIRGO --- ---
    Komplexní soubor odkazů většiny ofiko zdrojů na pátek:

    Cassini: The Grand Finale: For Media
    https://saturn.jpl.nasa.gov/mission/grand-finale/for-media/?admin_preview=true#streaming
    VIRGO
    VIRGO --- ---
    UUUFFFFFFFFFFFFFFFFF,

    právě přícházejí ÚPLNĚ POSLEDÍ RAWy...



    https://saturn.jpl.nasa.gov/galleries/raw-images?order=earth_date+desc&per_page=50&page=0
    VIRGO
    VIRGO --- ---
    Dnes kolem 21:58 SELČ bude Cassini pořizovat poslední snímek.

    Kolem 23:45 SELČ začne přenos všech dat uložených v interní pevné paměti SSR (o velikosti 4Gbity)



    Zítra kolem 10:37 SELČ: sw rekonfigurace - všechna poslední data budou v nízkém bitratu posílány do DSN v Canbeře v reálném čase

    Kolem 13:55: očekávaná ztráta signálu.
    VIRGO
    VIRGO --- ---
    University of Sheffield astronomers explore origin of Planet 9 - Latest - News - The University of Sheffield
    https://www.sheffield.ac.uk/news/nr/planet-9-origin-1.729791

    Researchers from University’s Department of Physics and Astronomy explore how Planet 9 ended up on the outskirts of our Solar System

    It has previously been suggested that the planet either moved to the edge of the Solar System from the inner regions, or it was captured
    when the Sun was still in its birth star cluster

    Team finds the capture scenario is ‘unlikely’ and Planet 9 must have formed around the Sun

    https://arxiv.org/pdf/1709.00418.pdf
    VIRGO
    VIRGO --- ---
    Supernova simulations reveal mysteries of dying stars
    http://www.ras.org.uk/news-and-press/3047-supernova-simulations-reveal-mysteries-of-dying-stars

    An international team of astronomers have created the longest consistent 3D model of a neutrino-driven supernova explosion to date,
    helping scientists to better understand the violent deaths of massive stars. The research, conducted using supercomputers in Australia,
    Germany, and the DiRAC facility in the UK, is published in the journal Monthly Notices of the Royal Astronomical Society.

    VIRGO
    VIRGO --- ---
    TONIGHT: Cassini mission experts live at 22:00 CEST as they talk about the Grand Finale:

    NASA JPL Live - YouTube
    https://www.youtube.com/NASAJPL/live

    VIRGO
    VIRGO --- ---
    The empty primordial asteroid belt | Science Advances
    http://advances.sciencemag.org/content/3/9/e1701138.full

    The asteroid belt contains less than a thousandth of Earth’s mass and is radially segregated, with S-types dominating the inner belt and C-types the outer belt.
    It is generally assumed that the belt formed with far more mass and was later strongly depleted. We show that the present-day asteroid belt is consistent with
    having formed empty, without any planetesimals between Mars and Jupiter’s present-day orbits. This is consistent with models in which drifting dust is concentrated
    into an isolated annulus of terrestrial planetesimals. Gravitational scattering during terrestrial planet formation causes radial spreading, transporting
    planetesimals from inside 1 to 1.5 astronomical units out to the belt.

    VIRGO
    VIRGO --- ---
    Star formation influenced by local environmental conditions – Niels Bohr Institute - University of Copenhagen
    http://www.nbi.ku.dk/...ish/news/news17/star-formation-influenced-by-local-environmental-conditions/

    STAR FORMATION: Three scientists at Niels Bohr Institute (NBI), University of Copenhagen, have carried out extensive computer simulations related
    to star formation. They conclude that the present idealized models are lacking when it comes to describing details in the star formation process.
    “Hopefully our results can also help shed more light on planet formation”, says Michael Küffmeier, astrophysicist and head of the research team.

    VIRGO
    VIRGO --- ---
    Krása...
    The Big Bang by Glenna Burmer
    https://www.youtube.com/watch?v=7RduEjCaqX0
    VIRGO
    VIRGO --- ---
    Researchers create first global map of water in Moon’s soil | News from Brown
    http://news.brown.edu/articles/2017/09/moonwater

    A new study maps the trace concentrations of water implanted in the lunar soil by the solar wind, a water source that could be used as resource in future lunar exploration.

    VIRGO
    VIRGO --- ---
    News | NASA's Curiosity Mars Rover Climbing Toward Ridge Top
    https://www.jpl.nasa.gov/news/news.php?feature=6946

    NASA's Mars rover Curiosity has begun the steep ascent of an iron-oxide-bearing ridge
    that's grabbed scientists' attention since before the car-sized rover's 2012 landing.

    "Vera Rubin Ridge" stands prominently on the northwestern flank of Mount Sharp, resisting erosion better than the less-steep portions of the mountain
    below and above it. The ridge, also called "Hematite Ridge," was informally named earlier this year in honor of pioneering astrophysicist Vera Rubin.

    The ascent to the top of the ridge from a transition in rock-layer appearance at the bottom of it will gain about 213 feet (65 meters) of elevation --
    about 20 stories. The climb requires a series of drives totaling a little more than a third of a mile (570 meters). Before starting this ascent in early
    September, Curiosity had gained a total of about 980 feet (about 300 meters) in elevation in drives totaling 10.76 miles (17.32 kilometers) from its
    landing site to the base of the ridge.

    VINCENT_BU
    VINCENT_BU --- ---
    VIRGO: o den se teda sekli :D
    VIRGO
    VIRGO --- ---
    New supernova analysis reframes dark energy debate
    http://www.ras.org.uk/news-and-press/3046-new-supernova-analysis-reframes-dark-energy-debate

    The accelerating expansion of the Universe may not be real, but could just be an apparent effect, according to new research published in the journal
    Monthly Notices of the Royal Astronomical Society. The new study—by a group at the University of Canterbury in Christchurch, New Zealand—finds the fit
    of Type Ia supernovae to a model universe with no dark energy to be very slightly better than the fit to the standard dark energy model.

    Dark energy is usually assumed to form roughly 70% of the present material content of the Universe. However, this mysterious quantity is essentially
    a place-holder for unknown physics.

    Current models of the Universe require this dark energy term to explain the observed acceleration in the rate at which the Universe is expanding.
    Scientists base this conclusion on measurements of the distances to supernova explosions in distant galaxies, which appear to be farther away than
    they should be if the Universe’s expansion were not accelerating.

    VIRGO
    VIRGO --- ---
    Plume Activity and Tidal Deformation on Enceladus Influenced by Faults and Variable Ice Shell Thickness
    http://online.liebertpub.com/doi/full/10.1089/ast.2016.1629

    Běhounková Marie, Souček Ondřej, Hron Jaroslav, and Čadek Ondřej.
    VIRGO
    VIRGO --- ---
    Last 24 hours for this outstanding mission. But to be more optimistic:A new NASA JPL e-book
    Cassini: The Grand Finale: The Saturn System Through the Eyes of Cassini (e-Book)
    https://saturn.jpl.nasa.gov/resources/7777/?category=graphics



    PANAAK
    PANAAK --- ---
    GW150914 2nd anniversary today!



    // calls for a big cake at least 10-23 in diameter!
    Kliknutím sem můžete změnit nastavení reklam