Earth_ekata_baba_hamba_wei_wage

දඩබ්බරයා

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  • Jan 2, 2012
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    මගේම ලෝකෙක
    කිලෝමීටර් පහක්‌ පළල දැවැන්ත ටව්ටාටිස්‌ උල්කාපාතය පෘතුවිය සමීපයෙන් ගමන් කරනවා

    ඉදිරිදින කීපය තුළදී දැවැන්ත උල්කාපාතයක්‌ පෘතුවිය සමීපයෙන් ගමන් කරන බව අභ්‍යවකාශ විශේෂඥයෝ පවසති.

    ටව්ටාටිස්‌ නැමැති මේ උල්කාපාතය කිලෝ මීටර් පහක්‌ පළල යයි හෙලි වී ඇත.

    කැනරි දූපත් සමූහයේ ස්‌ථානගත කර ඇති දුර දක්‌න තුළින් මේ උල්කාපාතය නැරඹිය හැකි වේ.

    මෙම උල්කාපාතය මුලින්ම සොයා ගනු ලැබුවේ 1989 වසරේදීයි.

    මෙවන් උල්කාපාතයක්‌ වසර මිලියන 65 කට පෙර පෘතුවියට කඩා වැටීමෙන් ඩයිනෝසරස්‌ සතුන් විනාශ වී ඇත.

    ටව්ටාටිස උල්කාපාතය නිසා පෘතුවියට හානියක්‌ සිදු නොවන බව කීවත් එය යම් ලෙසකින් ගැටුනොත් මහත් විනාශයක්‌ සිදුවන බවද අභ්‍යවකාශ නිරීක්‍ෂකයෝ පවසති.

    :no::no::no::no::no::no::no:
    375492_479616142090474_1324216076_n.jpg


    http://www.space.com/18828-3-mile-long-asteroid-to-fly-by-earth-see-the-orbit.html
     
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    දඩබ්බරයා

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  • Jan 2, 2012
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    මගේම ලෝකෙක
    Asteroid that came nearer to Earth than the moon (... but was only spotted two days before the close encounter)

    Astronomers estimate that 2012 XE54 is about 120ft wide - big enough to cause substantial damage if it ever hits us.

    However, they say impact is highly unlikely

    By Mark Prigg and Charles Walford

    PUBLISHED:15:46 GMT, 12 December 2012|

    PHOTO: Four computer generated views of Asteroid Toutatis based on radar images from Nasa's Goldstone probe

    A recently discovered asteroid gave Earth a close shave yesterday as it came within the moon's orbit.

    The near-Earth asteroid 2012 XE54, which was only spotted for the first time on Sunday, came within 140,000 miles of our planet


    The moon orbits at an average distance of 240,000 miles or so from the Earth.

    Astronomers estimate that 2012 XE54 is about 120ft wide - big enough to cause substantial damage if it ever hits us.

    An object of similar size flattened 800 square miles of forest in Siberia in 1908.


    'Asteroids eclipsing during an Earth flyby are relatively rare,' astronomer Pasquale Tricarico of the Planetary Science Institute in Tucson, Arizona, wrote on a blog on Monday.

    Luckily, there is thought to be no danger of it, or another recently discovered rock, hitting Earth - but scientists say the unique occurrence could help them learn a lot about asteroids.

    'A close analysis of the trajectory of this asteroid reveals that it will likely cross the Earth's shadow, causing a partial eclipse of the asteroid a few hours before reaching its minimum distance with the Earth,' said Pasquale Tricarico of the Planetary Science Institute, who created the animation above.

    Astronomers also created this unique view of the earth - from the asteroid as it passes close by.

    This animation shows the Sun and the Earth as observed from the asteroid 2012 XE54, which passed close to Earth along with a long-studied giant space rock named Toutatis.

    Asteroids eclipsing during an Earth flyby are relatively rare, with the first known case of asteroid 2008 TC3 which was totally eclipsed just one hour before entering Earth's atmosphere over Sudan in 2008, and asteroid 2012 KT42 experiencing both an eclipse and a transit during the same Earth flyby in 2012.

    4179 Toutatis, with a shape that has been described as a 'malformed potato' will pass 6.9 million kilometers (4.3 million miles) away from Earth, or more than 18 times the distance from the Earth to the Moon.


    At 4.46 kilometers (2.7 miles) long and 2.4 kilometers (1.5 miles) wide, astronomers say it is considered a potentially hazardous asteroid because it makes repeated passes by the Earth, about every four years.


    In comparison, the asteroid that is thought to have destroyed the dinosaurs was approximately 10 km (6 miles) wide.

    It's passing will be streamed online by the Slooh Space Camera

    At its maximum brightness, experts say Toutatis might be barely visible through binoculars.


    598391_479822465403175_2139305131_n.jpg
     

    88gee

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  • May 11, 2008
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    දඩබ්බරයා;14047759 said:
    Uba kohamada macho danne ethana dura watenawa dawasath ekkama balapanko man danna ithin ...hadata thiyena dura he he

    oya news eka man kalin dekka un kiyala thibbe oka earth ekata langatama awama thiyena dura ape indan hadata thiyena dura wage 15 gunayak kiyala :eek: nethuwa mata oke dura balaganna spcl widiyak ne :(
     

    88gee

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  • May 11, 2008
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    me uba deepu link eketh eka dala thiyenwa

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    The irregularly-shaped space rock named 4179 Toutatis will make its closest approach (nearly 4.4 million miles away or 18X Moon distance) to Earth on December 12th, 2012.
    Credit: NASA