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    VIRGOCosmos In Brief - Aktualní novinky vesmírného výzkumu v kostce




    For every complex question, there's a simple answer that's completely wrong.
    rozbalit záhlaví
    SEJDA
    SEJDA --- ---
    ESTEN: Jde asi o rozsireni infrastuktury na Vanderbergu, volne terminy a marketingove (start pujde sledovat z pobrezi).

    First interplanetary launch from the West Coast
    All of NASA's interplanetary launches to date have been from Florida, in part because the physics of launching off the East Coast are better for journeys to other planets. But InSight will break the mold by launching from Vandenberg Air Force Base in California. It will be the first launch to another planet from the West Coast.

    InSight will ride on top of a powerful Atlas V 401 rocket, which allows for a planetary trajectory to Mars from either coast. Vandenberg was ultimately chosen because it had more availability during InSight's launch period.

    A whole new region will get to see an interplanetary launch when InSight rockets into the sky. In a clear, pre-dawn sky, the launch may be visible in California from Santa Maria to San Diego.
    News | Seven Ways Mars InSight is Different
    https://www.jpl.nasa.gov/news/news.php?feature=7067
    ESTEN
    ESTEN --- ---
    1 odpověď+1
    CZMELAK: orientace prvni orbity okolo zeme nema zadnej praktickej vliv (krome maly pomoci dany zemskou rotaci pri startu na vychod), na mars transfer orbit jsou pak stejne potreba jeste minimalne dva zazehy, na kterejch teprve zalezi celkova nakladnost (na palivo) a doba transferu. Z Vandenbergu se tak jako tak na vychod litat neda, z bezpecnostnich duvodu.

    Jinymi slovy -- nevim, proc zvolili Vandenberg a polarni pocatecni orbitu, ale od marsu je to nijak citelne nevzdaluje ;)
    CZMELAK
    CZMELAK --- ---
    1 odpověď
    Možná blbá otázka - proč letí InSight na jih? Není to na Mars blíž přes východ?

    "During the first 17 seconds of powered flight, the Atlas V will climb vertically above its launch pad. Then it will begin a pitch and yaw maneuver that will place it on a trajectory towards Earth’s south pole."

    https://www.nasa.gov/.../jpl/bound-for-mars-countdown-to-first-interplanetary-launch-from-california
    GIOMIKY
    GIOMIKY --- ---
    The "first luxury hotel in space" has started taking booking reservations
    https://www.sciencealert.com/first-luxury-space-hotel-taking-reservations-bookings-2022-price

    Kdyztak smazte
    HOWKING
    HOWKING --- ---
    +2
    Details:

    I imaged the ISS on 3-25-18 from my Manorville NY, USA backyard. Max ISS pass was 62° at 8:06pm EST. The telescope was an Hedge HD 14 with a 1.6X barlow and red Astrodon filter on my ZWO ASI290 mono camera. The mount and software helped me lock onto the ISS............The seeing at the time was poor. I did not stack any of these images. I am posting a short video, because I could not upload the full ISS pass. Kind Regards to all :-)
    http://spaceweathergallery.com/indiv_upload.php?upload_id=143568&PHPSESSID=i73r7qd8m1mi8n4slbj3hik2l7

    BLACKHEAD
    BLACKHEAD --- ---
    +2
    HOWKING: Hele tak sem postni nejake dalsi detaily...
    HOWKING
    HOWKING --- ---
    1 odpověď+1
    Vidím, že se to líbí. Tak abych to ještě vyeskaloval, tak zkuste sami najít podobné video natočené z povrchu zemského - ty nejlepší z těch co najdete budou mít sotva čtvrtinové rozlišení/počet detailů. Tohle je prostě masakr záběr.
    HOWKING
    HOWKING --- ---
    +31

    ISS přes SCTčko 14"
    ICE
    ICE --- ---
    Radarfilm von Tiangong-1 gemessen am 27.3.2018
    https://www.youtube.com/watch?v=idwMJZmOpQM
    GIOMIKY
    GIOMIKY --- ---
    +1
    Real-Time Map Lets You Track The Out-Of-Control Chinese Space Station As It Heads Towards Earth | IFLScience
    http://www.iflscience.com/...track-the-outofcontrol-chinese-space-station-as-it-heads-towards-earth/
    XCHAOS
    XCHAOS --- ---
    +4
    bylo tu už?
    https://www.sciencealert.com/brightest-fast-radio-burst-ever-detected-parkes-observatory-frb-180309
    https://www.extremetech.com/extreme/266018-scientists-detect-brightest-ever-fast-radio-burst
    https://www.technology.org/...brightest-fast-radio-burst-ever-seen-still-no-idea-whats-causing-them/
    https://www.svethardware.cz/astronomove-zachytili-dosud-nejjasnejsi-rychly-radiovy-zablesk/46297
    JULIANNE
    JULIANNE --- ---
    Dávala jsem to už mnohokrát na Facebook a Twitter, ale uvědomila jsem si, že ještě ne sem... Napravuji:

    https://www.facebook.com/events/773101982883530/

    Pro nefacebookové: Dnes od 17:15 se na PřF UK koná přednáška profesora Schulze-Makucha nazvaná "Testing the Dry Limit of Life: From an Asphalt Desert to the Atacama Desert and Mars".

    Anotace: Jak se studuje život v nejsušších místech na Zemi a co nám jeho rozličné adaptace na tamní drsné podmínky mohou napovědět o šancích na život na jiných tělesech či metodách pátrání po životě či jeho chemických pozůstatcích například na Marsu? Kde bychom měli hledat život mimo Zemi? Tyto a další otázky nastíní profesor Schulze-Makuch, astrobiolog a náš host z Berlínské technické univerzity.
    Mezi jeho nedávné studie patří právě výzkum mikroorganismů v půdních profilech atacamské pouště a zjištění, že míra osídlení se odvíjí od celé řady podmínek jako depozice materiálu, seismická aktivita, salinita či četnost mlh. Tento výzkum nejen rozvíjí naše znalosti o životě v hraničních podmínkách na Zemi, ale má i uplatnění ve vytipování vhodných míst, kam posílat kosmické sondy na Marsu. (Přednáška proběhne v angličtině bez tlumočení.)

    Dirk Schulze-Makuch (nar. 1964) je profesor v Centru pro astronomii a astrofyziku na Berlínské technické univerzitě. Publikoval více než stovku vědeckých článků a je autorem či spoluautorem devíti knih týkajících se oboru astrobiologie, od učebnic přes popularizační knihy až po jeden science fiction román. Vystudoval geologii a zabýval se například transportem mikroorganismů a chemických látek v pozemní vodě a rolí organismů v geochemických cyklech. V současné době se zabývá zejména extremofilním životem a možnostmi geobiochemických cyklů na jiných tělesech než Země. Podílí se také na několika konceptech kosmických misí.

    BTW, před pár dny mu vyšel článek k tomuto tématu: http://www.pnas.org/content/early/2018/02/20/1714341115

    Popularizačně zde:
    Life always finds a way | WSU News | Washington State University
    https://news.wsu.edu/2018/02/26/life-always-finds-way/
    ARCHIMEDES
    ARCHIMEDES --- ---
    +1
    VIRGO: Běžně ji beru, u rentgenu přidám do kastlíku k elektronice a nikdy nebyl problém.
    VIRGO
    VIRGO --- ---
    1 odpověď
    Tak teprva teď trochu cejtím cestovní horečku...

    Pls, nemáte někdo zkušenosti s tím, jak je to s externí baterkou na tablet/mobil na letišti? Dnes jsem
    koupil novou, pač stará už dosluhuje, ale mám trochu obavu, že mě s tím nepustí na palubu...

    Gogen Power Bank 200003 STREET 20000mAh černá - Power Bank | Alza.cz
    https://www.alza.cz/gogen-power-bank-200003-street-20000mah-cerna-d5145692.htm
    VIRGO
    VIRGO --- ---
    +1
    UCF-led Consortium to Manage Arecibo Observatory in Puerto Rico - UCF News - University of Central Florida Articles - Orlando, FL News
    http://today.ucf.edu/ucf-led-consortium-manage-arecibo-observatory-puerto-rico/

    The largest fully operational radio telescope on the planet – the Arecibo Observatory in Puerto Rico – will soon be under new management.

    A consortium led by the University of Central Florida will start formal transition activities to take on the management of the National
    Science Foundation’s Observatory. NSF is negotiating the operations and management award with UCF.

    With its partners, Universidad Metropolitana in San Juan and Yang Enterprises, Inc. in Oviedo, the team plans to expand the capabilities
    of the telescope, which has made significant contributions to science.

    UCF to Manage Arecibo Observatory in Puerto Rico
    https://www.youtube.com/watch?v=OXGx7Mfv-IM
    VIRGO
    VIRGO --- ---
    +1
    To to utíká...

    Astronomers Discover S0-2 Star is Single and Ready for Big Einstein Test W. M. Keck Observatory
    http://www.keckobservatory.org/recent/entry/S02_Single

    Astronomers have the “all-clear” for an exciting test of Einstein’s Theory of General Relativity, thanks to a new discovery about S0-2’s star status.

    Up until now, it was thought that S0-2 may be a binary, a system where two stars circle around each other. Having such a partner would have complicated the upcoming gravity test.

    But in a study published recently in The Astrophysical Journal, a team of astronomers led by a UCLA scientist from Hawaii has found that S0-2 does not have a significant other
    after all, or at least one that is massive enough to get in the way of critical measurements that astronomers need to test Einstein’s theory. The researchers made their discovery
    by obtaining spectroscopic measurements of S0-2 using W. M. Keck Observatory’s OH-Suppressing Infrared Imaging Spectrograph (OSIRIS) and Laser Guide Star Adaptive Optics.

    VIRGO
    VIRGO --- ---
    +2
    VIRGO: ad poslední past: na příští sobotu dopoledne mám zabukovaný vstup
    na Observatorio del Roque de los Muchachos na La Palma. Když budu mít štěstí,
    uvidím Gran Telescopio Canarias osobně. Jupíííí! :))

    (Prohlídky teleskopů se určují podle jejich momentální vytíženosti.)

    Observatorio del Roque de los Muchachos
    https://www.youtube.com/watch?v=nb6wesJRK5o
    VIRGO
    VIRGO --- ---
    1 odpověď+2
    Magnetic field traces gas and dust swirling around supermassive black hole
    http://www.ras.org.uk/...-magnetic-field-traces-gas-and-dust-swirling-around-supermassive-black-hole

    Astronomers reveal a new high resolution map of the magnetic field lines in gas and dust swirling around the supermassive black hole at the centre of our Galaxy,
    published in a new paper in Monthly Notices of the Royal Astronomical Society. The team, led by Professor Pat Roche of the University of Oxford, created the map,
    which is the first of its kind, using the CanariCam infrared camera attached to the Gran Telescopio Canarias sited on the island of La Palma.

    VIRGO
    VIRGO --- ---
    +3
    https://www.nasa.gov/feature/jpl/nearly-a-decade-after-mars-phoenix-landed-another-look

    A recent view from Mars orbit of the site where NASA's Phoenix Mars mission landed on far-northern Mars nearly a decade ago shows that dust has covered some marks of the landing.

    The Phoenix lander itself, plus its back shell and parachute, are still visible in the image taken Dec. 21, 2017, by the High Resolution Imaging Science Experiment (HiRISE) camera
    on NASA's Mars Reconnaissance Orbiter. But an animated-blink comparison with an image from about two months after the May 25, 2008, landing shows that patches of ground that had
    been darkened by removal of dust during landing events have become coated with dust again.

    VIRGO
    VIRGO --- ---
    Some black holes erase your past | Berkeley News
    http://news.berkeley.edu/2018/02/20/some-black-holes-erase-your-past/

    In the real world, your past uniquely determines your future. If a physicist knows how the universe starts out, she can calculate its future for all time and all space.

    But a UC Berkeley mathematician has found some types of black holes in which this law breaks down. If someone were to venture into one of these relatively benign black holes,
    they could survive, but their past would be obliterated and they could have an infinite number of possible futures.

    Falling into a realistic Reissner-Nordstrom Black Hole
    https://www.youtube.com/watch?v=5JfjqUSLDdk
    VIRGO
    VIRGO --- ---
    ALMA Deepens Mystery about the relation between Supermassive Black Holes and their Host Galaxies | ALMA
    http://www.almaobservatory.org/...relation-between-supermassive-black-holes-and-their-host-galaxies/

    Using the Atacama Large Millimeter/submillimeter Array (ALMA) to observe an active galaxy with a strong ionized gas outflow from the galactic center,
    astronomers have obtained a result making astronomers even more puzzled: an unambiguous detection of carbon monoxide (CO) gas associated with the galactic disk.
    However, they have also found that the CO gas which settles in the galaxy is not affected by the strong ionized gas outflow launched from the galactic center.

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