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    VIRGOCosmos In Brief - Aktualní novinky vesmírného výzkumu v kostce
    VIRGO
    VIRGO --- ---
    An Earth-Sized Telescope Just Snapped Two Pictures
    https://www.youtube.com/watch?v=8pOymi4ipp0


    Right now, astronomers are attempting to take the first image of the event horizon of
    the supermassive black hole at the centre of the Milky Way — but what exactly are black holes?
    Taking the First Picture of a Black Hole | ESO Australia
    http://www.eso.org/public/australia/outreach/first-picture-of-a-black-hole/blog/

    VIRGO
    VIRGO --- ---
    NASA Approves Instruments for ESA’s ‘JUICE’ Mission to Jupiter System
    https://www.nasa.gov/feature/nasa-approves-instruments-for-esa-s-juice-mission-to-jupiter-system

    NASA’s partnership in a future European Space Agency (ESA) mission to Jupiter and its moons has cleared a key milestone,
    moving from preliminary instrument design to implementation phase.

    The April 6 milestone, known as Key Decision Point C (KDP-C), is the agency-level approval for the project to enter building phase.
    It also provides a baseline for the mission’s schedule and budget. NASA’s total cost for the project is $114.4 million. The next
    milestone for the NASA contributions will be the Critical Design Review (CDR), which will take place in about one year. The CDR
    for the overall ESA JUICE mission is planned in spring 2019.

    VIRGO
    VIRGO --- ---
    Eclipse Webcast 6: Eclipsing Exoplanets
    https://www.youtube.com/watch?v=W-2ljiuXwVI&t=4s
    VIRGO
    VIRGO --- ---
    +2
    Dnes ve 20h
    Nastavit připomenutí — Hyde Park Civilizace: Fabiola Gianotti — Česká televize
    http://www.ceskatelevize.cz/porady/10441294653-hyde-park-civilizace/217411058090415/
    VIRGO
    VIRGO --- ---
    Ajaj, SPdA je blizounko observatořím...
    Strong M6.2 earthquake hits Chile at intermediate depth
    https://watchers.news/2017/04/15/chile-earthquake-april-15-2017/
    VIRGO
    VIRGO --- ---
    On April 13, 2017 (yesterday) Cassini took this likely image of the Earth during Orbit 269.
    Original pic included in the link, pictured here is the one processed with levels in PS.

    Cassini: Mission to Saturn: Image of Earth
    https://saturn.jpl.nasa.gov/raw_images/411414/

    VIRGO
    VIRGO --- ---
    Přituhuje...:((
    French Guiana: The part of South America facing a total shutdown - BBC News
    http://www.bbc.com/news/world-europe-39557670
    VIRGO
    VIRGO --- ---
    Large asteroid to hurtle past Earth on April 19
    https://phys.org/news/2017-04-large-asteroid-hurtle-earth-april.html

    VIRGO
    VIRGO --- ---
    ESTEN: Prostě novináři dělaj svůj džob. Kvůli toho jsem na konci připích odkaz na papír.
    ESTEN
    ESTEN --- ---
    1 odpověď
    VIRGO: managed to get a fluid of superchilled atoms to act as though it has negative mass

    Ja ty click bait titulky tak nesnasim. Jako kdyby nestacilo to, co se jim opravdu povedlo. Ale ne, musime si hrat na sci-fi, jinak by to nikdo urcite necet... ach jo.
    VIRGO
    VIRGO --- ---
    Včerejší astrokafe a SOFIA:
    Astronomy Aloft: The SOFIA Airborne Observatory
    https://www.youtube.com/watch?v=jh_weidR3a0
    VIRGO
    VIRGO --- ---
    +3
    Enceladus' Subsurface Energy Source: What It Means for Search for Life
    http://www.space.com/36469-enceladus-energy-souce-search-for-life.html

    A space mission that could hunt for definitive signs of life on Saturn's moon Enceladus looks even more enticing
    following the release of new evidence that a habitable environment lies under the surface of this icy world.

    The surface of Enceladus consists of a solid ice layer that is estimated to have an average thickness of 11 to 14
    miles (18 to 22 kilometers), and that covers a massive, liquid-water ocean. The new study indicates that the floor
    of Enceladus' ocean likely features hot water vents, similar to the ones that host lush ecosystems at the bottom
    of Earth's oceans. The alien ocean also features a type of molecule frequently used as a food supply by life-forms
    on Earth, the study said.

    ---

    Flying toward Enceladus' plumes (animation) | The Planetary Society
    http://www.planetary.org/multimedia/space-images/saturn/flying-toward-enceladus.html

    5 years ago today: FLYING TOWARD ENCELADUS' PLUMES

    Cassini took this sequence of photos of Enceladus' south polar plumes as it approached
    for its super close flyby on April 14, 2012.

    VIRGO
    VIRGO --- ---
    ALMA Examines a Distant Quasar Host
    http://aasnova.org/2017/04/05/alma-examines-a-distant-quasar-host/

    A team of scientists has used the Atacama Large Millimeter/submillimeter Array (ALMA) to explore the host galaxy of the most distant
    quasar known. Their observations may help us to build a picture of how the first supermassive black holes in the universe formed and evolved.

    VIRGO
    VIRGO --- ---
    +1
    Hubble Sees Starbursts in Virgo
    https://www.nasa.gov/image-feature/goddard/2017/hubble-sees-starbursts-in-virgo

    VIRGO
    VIRGO --- ---
    Remarkably inexpensive mission could find planets around the nearest sun-like stars
    Remarkably inexpensive mission could find planets around the nearest sun-like stars
    https://medium.com/...sive-mission-could-find-planets-around-the-nearest-sun-like-stars-4b36870c1ef7
    Alpha Centauri A and B are just 4.37 light years away. Do they have planets around them? And possibly life? We just might find out!

    VIRGO
    VIRGO --- ---
    Heino Falcke´s live interview for Al Jazeera newshour about EHT from IRAM 30 m library at Pico Veleta:
    Scientists set to capture first-ever image of a Black Hole | News | Al Jazeera
    http://www.aljazeera.com/.../scientists-set-capture-first-ever-image-black-hole-170413150659233.html
    VIRGO
    VIRGO --- ---
    Another interesting view of the April 10 fireball over Southern California*

    Meteor April 10, 2017
    https://www.youtube.com/watch?v=WAdu31qiVv4
    VIRGO
    VIRGO --- ---
    Asteroids Are Bad at Making Waves
    http://www.space.com/36451-asteroids-bad-at-making-waves.html

    When an asteroid hits the middle of the ocean in Hollywood movies, it creates devastating waves that wipe out coastal cities. But new simulations reveal that
    real asteroids don't make such a splash. That's because the crash releases most of its energy hurling water up into the atmosphere, and very little on making waves.

    "The folklore has been that tsunamis from impactors will be the danger," Galen Gisler, who studies the physics of geological processes at Los Alamos National Laboratory,
    said at the Lunar and Planetary Sciences Conference last month in The Woodlands, Texas. (Gisler also presented the work at the American Geophysical Union's fall meeting
    in December 2016.) He ran 3D simulations that modeled wave formation from falling rocks of various sizes, as shown in this video, and found that the waves formed by
    smaller asteroids resemble landslide tsunamis on Earth.

    "The splash wave can be very dangerous — out to tens of kilometers — but beyond that, they fall away more sharply," he said.

    Visualization and Analysis of Threats from Asteroid Ocean Impacts
    https://www.youtube.com/watch?v=yeXcgnj8AG0
    VIRGO
    VIRGO --- ---
    1 odpověď+1
    Jakže??
    Physicists Say They've Created a Fluid With 'Negative Mass' - ScienceAlert
    http://www.sciencealert.com/physicists-say-they-ve-created-a-fluid-with-negative-mass

    Researchers in the US say they've created a fluid with negative mass in the lab... which is exactly as mind-bending as it sounds.

    What it means is that, unlike pretty much every other known physical object, when you push this fluid, it accelerates backwards instead of
    moving forwards. Such an oddity could tell scientists about some of the strange behaviour that happens within black holes and neutron stars.

    But let's take a step back for a second here, because how can something have negative mass?

    Hypothetically speaking, matter should be able to have negative mass in the same way that an electric charge can be either negative or positive.

    On paper that works, but it's still debated in the science world whether negative mass objects can really exist without breaking the laws
    of physics - something that's not helped by the fact that the very concept is hard for us mere humans to wrap our heads around.

    Phys. Rev. Lett. 118, 155301 (2017) - Negative-Mass Hydrodynamics in a Spin-Orbit\char21{}Coupled Bose-Einstein Condensate
    https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.155301
    VIRGO
    VIRGO --- ---
    Device pulls water from dry air, powered only by the sun
    https://phys.org/news/2017-04-device-air-powered-sun.html

    The solar-powered harvester, reported in the journal Science, was constructed at the Massachusetts Institute of Technology
    using a special material - a metal-organic framework, or MOF - produced at the University of California, Berkeley.

    "This is a major breakthrough in the long-standing challenge of harvesting water from the air at low humidity," said Omar Yaghi,
    one of two senior authors of the paper, who holds the James and Neeltje Tretter chair in chemistry at UC Berkeley and is a faculty
    scientist at Lawrence Berkeley National Laboratory. "There is no other way to do that right now, except by using extra energy.
    Your electric dehumidifier at home 'produces' very expensive water."

    The prototype, under conditions of 20-30 percent humidity, was able to pull 2.8 liters (3 quarts) of water from the air over a 12-
    hour period, using one kilogram (2.2 pounds) of MOF. Rooftop tests at MIT confirmed that the device works in real-world conditions.

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