Code Context </style>
<?php if(sizeof($quizpole)>0){?>
<h3>Quiz for <?php echo $title; ?></h3>
$viewFile = '/var/www/currentaffairs.studyiq.com/plugins/Studyiq/src/Template/Pages/tagdetails.ctp'
$dataForView = [
'headertags' => [
(int) 0 => object(Cake\ORM\Entity) {},
(int) 1 => object(Cake\ORM\Entity) {},
(int) 2 => object(Cake\ORM\Entity) {},
(int) 3 => object(Cake\ORM\Entity) {},
(int) 4 => object(Cake\ORM\Entity) {},
(int) 5 => object(Cake\ORM\Entity) {},
(int) 6 => object(Cake\ORM\Entity) {},
(int) 7 => object(Cake\ORM\Entity) {},
(int) 8 => object(Cake\ORM\Entity) {},
(int) 9 => object(Cake\ORM\Entity) {},
(int) 10 => object(Cake\ORM\Entity) {},
(int) 11 => object(Cake\ORM\Entity) {},
(int) 12 => object(Cake\ORM\Entity) {},
(int) 13 => object(Cake\ORM\Entity) {}
],
'breadcrumb' => [
(int) 0 => [
'name' => 'Home',
'link' => 'https://currentaffairs.studyiq.com/'
],
(int) 1 => [
'name' => 'Space ',
'link' => 'https://currentaffairs.studyiq.com/tags/space'
]
],
'previous' => [
(int) 0 => object(Cake\ORM\Entity) {}
],
'next' => [
(int) 0 => object(Cake\ORM\Entity) {}
],
'currentaffairs' => [
(int) 0 => object(Cake\ORM\Entity) {}
],
'customer_id' => '',
'metadescription' => 'Space , Scientists have been looking for the black hole using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, and have so far found no evidence.',
'metakeyword' => 'Missing Supermassive black hole',
'title' => 'Space , Missing Supermassive black hole',
'tagname' => 'Space ',
'sbanners' => [
(int) 0 => object(Cake\ORM\Entity) {},
(int) 1 => object(Cake\ORM\Entity) {},
(int) 2 => object(Cake\ORM\Entity) {},
(int) 3 => object(Cake\ORM\Entity) {}
],
'params' => [
(int) 0 => 'space',
(int) 1 => 'missing-supermassive-black-hole'
]
]
$headertags = [
(int) 0 => object(Cake\ORM\Entity) {
'id' => (int) 3,
'name' => 'Art & Culture',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'art-culture',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Current Affairs Arts and Cultures Articles | Current Affairs',
'metakeyword' => 'Current Affairs Arts, Cultures Articles, Cultures Current Affairs Articles, Cultures Current Affairs, Current Affairs, Current Affair GK, General Knowledage',
'metadescription' => 'Current Affairs Arts and Cultures Articles complete current affairs details of Arts and cultures with complete depth analysis or full details of all current affair Articles',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 1 => object(Cake\ORM\Entity) {
'id' => (int) 4,
'name' => 'Polity & Governance',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'polity-governance',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Polity Current Affairs | Governance Current Affair | Polity GK',
'metakeyword' => 'Polity Current Affairs, Governance Current Affair, Polity GK, Current Affairs of Polity, Current Affairs of Governance, Current affair Polity',
'metadescription' => 'Polity Current Affairs, Governance Current Affair, and current affairs of Polity and Governance and more get with Study IQ Education Articles and full details',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 2 => object(Cake\ORM\Entity) {
'id' => (int) 5,
'name' => 'International Affairs',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'international-affairs',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'International Affairs | International Current Affairs, GK, News',
'metakeyword' => 'International Affairs, International Current Affairs, International GK, International News, International burning Issues, International Today Affairs, International Current Affair, International current affairs 2019',
'metadescription' => 'International Affairs, International Current Affairs, GK, News, burning issues and all relative information of Internation you can get here for depth knowledge',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 3 => object(Cake\ORM\Entity) {
'id' => (int) 6,
'name' => 'Economy',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'economy',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Economy Current Affairs | Economy Current Affair 2019 | Study IQ',
'metakeyword' => 'Economy Current Affairs, Economy Current Affair, Economy Current Affair 2019, Economy GK news, Economy Affairs, Current Affairs Economy, Current Affair Economy',
'metadescription' => 'Economy Current Affairs, Economy Current Affair 2019 and all the Economy Current Affair, GK, Burning Issues, News, get on study IQ education for exams preparation',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 4 => object(Cake\ORM\Entity) {
'id' => (int) 7,
'name' => 'Banking Awareness',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'banking-awareness',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Banking Awareness Current Affairs, GK, News, Burning Issues',
'metakeyword' => 'Banking Awareness, Current Affairs, Current Affair, bANKING CURRENT AFFAIRS, Current affair of Banking, Current affair of Bank, Current affairs of Bank, BAnk current affairs',
'metadescription' => 'Banking Awareness Current Affairs, GK, News, Burning Issues, and all the latest current affairs of Banking Awareness or Banking for Govt exams preparation',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 5 => object(Cake\ORM\Entity) {
'id' => (int) 8,
'name' => 'Defence & Security',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'defence-security',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Defence Current Affairs | Defence & Security Current Affairs',
'metakeyword' => 'Defence Current Affairs, Current Affairs, Current Affair, Current Affairs of Defence, Security Current Affairs, Security Current Affairs 2019, Security Current Affairs daily, Defence Current Affairs Daily',
'metadescription' => 'Defence Current Affairs, Defence & Security Current Affairs and complete details of Defence & Security current affairs, burning issues of Defence, Defence Today News ',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 6 => object(Cake\ORM\Entity) {
'id' => (int) 9,
'name' => 'Environment',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'environment',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Environment Current Affairs, Current Affairs 2019- Study IQ',
'metakeyword' => 'Environment Current Affairs, Current Affairs Articles, Current Affairs of Environment, Current Affairs Environment',
'metadescription' => 'Environment Current Affairs, Current Affairs 2019, Study IQ provide complete information of Environment Current Affairs, GK, Bunrning Issues, latest news and more',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 7 => object(Cake\ORM\Entity) {
'id' => (int) 10,
'name' => 'Science & Technology',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'science-technology',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Science & Technology Current Affairs | Science Current Affairs',
'metakeyword' => 'Science & Technology Current Affairs, Science & Technology Current Affair, Science Current Affairs, Science Current Affair, Technology Current Affair, Technology Current Affairs',
'metadescription' => 'Science & Technology Current Affairs, Science Current Affairs, Technology today affairs and more relative Science & Technology information get here free',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 8 => object(Cake\ORM\Entity) {
'id' => (int) 11,
'name' => 'Miscellaneous',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'miscellaneous',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Miscellaneous Current Affairs Articles 2019, GK News | Study IQ',
'metakeyword' => 'Current Affairs Articles 2019, Miscellaneous Current Affairs, GK News, Current Affairs Articles',
'metadescription' => 'Current Affairs Articles, Current Affairs GK News analysis, and all topic relative information get here free and online so no need go anywhere that makes time saving ',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 9 => object(Cake\ORM\Entity) {
'id' => (int) 12,
'name' => 'Government Schemes',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'government-schemes',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Government Schemes Current Affairs | Govt Current Affairs StudyIQ',
'metakeyword' => 'Government Schemes Current Affairs, Government Current Affairs, Current Affairs of government, ',
'metadescription' => 'Government Schemes Current Affairs, Government Current Affairs ad all government relative latest information, news, burning issues and more get here',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 10 => object(Cake\ORM\Entity) {
'id' => (int) 13,
'name' => 'Persons in News',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'persons-in-news',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Persons in News | Current Affairs, Awards, Books, Obituaries News',
'metakeyword' => 'Persons in News, Current Affairs, Awards, Books, Obituaries News',
'metadescription' => 'Persons in News, Current Affairs, Awards, Books, Obituaries News, and all the daily current affairs news you will get here with complete information',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 11 => object(Cake\ORM\Entity) {
'id' => (int) 14,
'name' => 'Constitution',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'constitution',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Constitution | Indian Constitution | World Constitution ',
'metakeyword' => 'constitution, Indian Constitution, World Constitution, Country Constitution ',
'metadescription' => 'Get the all the country constitution like Indian constitution, world constitution and more here you can get all the latest information relative to constitution',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 12 => object(Cake\ORM\Entity) {
'id' => (int) 15,
'name' => 'Biodiversity',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'biodiversity',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Biodiversity | ??? ??????? | Biodiversity Current affairs',
'metakeyword' => 'Biodiversity, ??? ???????, Biodiversity Current affairs',
'metadescription' => 'Biodiversity, ??? ???????, Biodiversity Current affairs, Get the latest Biodiversity information with us where you get all the latest information about Biodiversity',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
},
(int) 13 => object(Cake\ORM\Entity) {
'id' => (int) 16,
'name' => 'Ecology',
'parent_id' => (int) 2,
'description' => '',
'keyword' => 'ecology',
'sortorder' => (int) 0,
'status' => (int) 1,
'metatitle' => 'Ecology Topic Wise Current afairs | Ecology Current Affairs ',
'metakeyword' => 'Ecology Current Affairs, Ecology Current Affairs 2021, Best Ecology Current Affairs, ecology topic wise current affairs, ecology',
'metadescription' => 'Best Ecology Current affairs - Get the ecology topic current affairs for all the govt exams preparation with best studyiq faculties and also get free ecology topic pdf on daily basis ',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'cacategories'
}
]
$breadcrumb = [
(int) 0 => [
'name' => 'Home',
'link' => 'https://currentaffairs.studyiq.com/'
],
(int) 1 => [
'name' => 'Space ',
'link' => 'https://currentaffairs.studyiq.com/tags/space'
]
]
$previous = [
(int) 0 => object(Cake\ORM\Entity) {
'tags' => 'Space ',
'keyword' => 'space',
'title' => 'InSight lander to run out of power',
'posturl' => 'insight-lander-run-out-power',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'currentaffairs'
}
]
$next = [
(int) 0 => object(Cake\ORM\Entity) {
'tags' => 'Space ',
'keyword' => 'space',
'title' => 'Bedin 1: Scientists discover most isolated dwarf galaxy ',
'posturl' => 'scientists-discovers-most-isolated-dwarf-galaxy ',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'currentaffairs'
}
]
$currentaffairs = [
(int) 0 => object(Cake\ORM\Entity) {
'tag' => 'Space ',
'keyword' => 'space',
'id' => (int) 6866,
'title' => 'Missing Supermassive black hole',
'description' => '<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Issue</strong></span></span></p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">A supermassive black hole, which is estimated to weigh up to 100 billion times the mass of the Sun, is seemingly missing.</span></span></p>
<p style="margin-right:0cm"> </p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Background</strong></span></span></p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Scientists have been looking for the black hole using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, and have so far found no evidence.</span></span></p>
<p style="margin-right:0cm"> </p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Details</strong></span></span></p>
<ul>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">The black hole is supposed to be located in Abell 2261, an enormous galaxy cluster that is about 2.7 billion light-years away from our planet.</span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Scientists have been using data gathered in 1999 and 2004 to look for the centre of the Abell galaxy, but have so far been unable to find its black hole.</span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Every large galaxy in the universe has a supermassive black hole at its centre, whose mass is millions or billions of times that of the Sun. </span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">The black hole at the centre of our galaxy is called Sagittarius A*, and is 26,000 light-years away from Earth.</span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">A reason for this could be that Abell’s black hole has been ejected from the centre of the galaxy. This may have happened because of the merging of two smaller galaxies to form Abell.</span></span></p>
</li>
</ul>
<p style="margin-right:0cm"> </p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Recoiling of black hole</strong></span></span></p>
<ul>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">When two black holes merge, they release gravitational waves, which squeeze and stretch anything in their path. </span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">During such a merger, when the amount of waves generated in one direction is stronger than another, the new big black hole can be sent away from the centre of the galaxy into the opposite direction. </span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Scientists are yet to find definitive evidence for recoiling black holes, and are still to discover whether supermassive black holes can merge and release gravitational waves. </span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Currently, only mergers of significantly smaller black holes have been verified. If the hypothesis turns out to be true, it would mean a major breakthrough in astronomy.</span></span></p>
</li>
</ul>
<p style="margin-right:0cm"> </p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Light year</strong></span></span></p>
<p><span style="font-size:11.0pt"><span style="font-family:"Calibri","sans-serif"">One light-year is the distance that a beam of light travels in one Earth year, which is 9 trillion km. On the scale of the Universe, astronomers measure the distance from stars and galaxies in the time it takes for light to reach us.</span></span></p>
',
'created_date' => object(Cake\I18n\FrozenDate) {},
'posturl' => 'missing-supermassive-black-hole',
'image' => 'https://www.mediafire.com/convkey/8957/hcxnjkzd33bcs5u6g.jpg',
'fbimage' => 'https://www.mediafire.com/convkey/8957/hcxnjkzd33bcs5u6g.jpg',
'metatitle' => 'Missing Supermassive black hole',
'metakeyword' => 'Missing Supermassive black hole',
'metadescription' => 'Scientists have been looking for the black hole using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, and have so far found no evidence.',
'author' => null,
'downlaodpdf' => 'https://www.mediafire.com/file/rb7baaxz3l6dgf7/1._Missing_Supermassive_black_hole.pdf/file',
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'currentaffairs'
}
]
$customer_id = ''
$metadescription = 'Space , Scientists have been looking for the black hole using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, and have so far found no evidence.'
$metakeyword = 'Missing Supermassive black hole'
$title = 'Missing Supermassive black hole'
$tagname = 'Space '
$sbanners = [
(int) 0 => object(Cake\ORM\Entity) {
'id' => (int) 61,
'bannername' => 'http://www.mediafire.com/convkey/5f54/lodkrbkhwk5lg1q6g.jpg',
'bannerlink' => 'https://www.studyiq.com/course-detail/ssc-bank-combo',
'isright' => (int) 0,
'status' => (int) 1,
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'sitebanners'
},
(int) 1 => object(Cake\ORM\Entity) {
'id' => (int) 62,
'bannername' => 'http://www.mediafire.com/convkey/0552/k9b1o467l8edtbc6g.jpg',
'bannerlink' => 'https://studyiq.com/courses/state-exams',
'isright' => (int) 0,
'status' => (int) 1,
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'sitebanners'
},
(int) 2 => object(Cake\ORM\Entity) {
'id' => (int) 63,
'bannername' => 'http://www.mediafire.com/convkey/154a/6y1qvv7v118759h6g.jpg',
'bannerlink' => 'https://www.studyiq.com/course-detail/upsc-ias-pre-mains',
'isright' => (int) 0,
'status' => (int) 1,
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'sitebanners'
},
(int) 3 => object(Cake\ORM\Entity) {
'id' => (int) 64,
'bannername' => 'http://www.mediafire.com/convkey/563c/o65x6jso51flz886g.jpg',
'bannerlink' => 'https://studyiq.com/courses/upsc/optional-subjects',
'isright' => (int) 0,
'status' => (int) 1,
'[new]' => false,
'[accessible]' => [
[maximum depth reached]
],
'[dirty]' => [[maximum depth reached]],
'[original]' => [[maximum depth reached]],
'[virtual]' => [[maximum depth reached]],
'[errors]' => [[maximum depth reached]],
'[invalid]' => [[maximum depth reached]],
'[repository]' => 'sitebanners'
}
]
$params = [
(int) 0 => 'space',
(int) 1 => 'missing-supermassive-black-hole'
]
$b = [
'name' => 'Space ',
'link' => 'https://currentaffairs.studyiq.com/tags/space'
]
$currentaffair = object(Cake\ORM\Entity) {
'tag' => 'Space ',
'keyword' => 'space',
'id' => (int) 6866,
'title' => 'Missing Supermassive black hole',
'description' => '<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Issue</strong></span></span></p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">A supermassive black hole, which is estimated to weigh up to 100 billion times the mass of the Sun, is seemingly missing.</span></span></p>
<p style="margin-right:0cm"> </p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Background</strong></span></span></p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Scientists have been looking for the black hole using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, and have so far found no evidence.</span></span></p>
<p style="margin-right:0cm"> </p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Details</strong></span></span></p>
<ul>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">The black hole is supposed to be located in Abell 2261, an enormous galaxy cluster that is about 2.7 billion light-years away from our planet.</span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Scientists have been using data gathered in 1999 and 2004 to look for the centre of the Abell galaxy, but have so far been unable to find its black hole.</span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Every large galaxy in the universe has a supermassive black hole at its centre, whose mass is millions or billions of times that of the Sun. </span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">The black hole at the centre of our galaxy is called Sagittarius A*, and is 26,000 light-years away from Earth.</span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">A reason for this could be that Abell’s black hole has been ejected from the centre of the galaxy. This may have happened because of the merging of two smaller galaxies to form Abell.</span></span></p>
</li>
</ul>
<p style="margin-right:0cm"> </p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Recoiling of black hole</strong></span></span></p>
<ul>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">When two black holes merge, they release gravitational waves, which squeeze and stretch anything in their path. </span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">During such a merger, when the amount of waves generated in one direction is stronger than another, the new big black hole can be sent away from the centre of the galaxy into the opposite direction. </span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Scientists are yet to find definitive evidence for recoiling black holes, and are still to discover whether supermassive black holes can merge and release gravitational waves. </span></span></p>
</li>
<li>
<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">Currently, only mergers of significantly smaller black holes have been verified. If the hypothesis turns out to be true, it would mean a major breakthrough in astronomy.</span></span></p>
</li>
</ul>
<p style="margin-right:0cm"> </p>
<p style="margin-right:0cm"><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif"><strong>Light year</strong></span></span></p>
<p><span style="font-size:11.0pt"><span style="font-family:"Calibri","sans-serif"">One light-year is the distance that a beam of light travels in one Earth year, which is 9 trillion km. On the scale of the Universe, astronomers measure the distance from stars and galaxies in the time it takes for light to reach us.</span></span></p>
',
'created_date' => object(Cake\I18n\FrozenDate) {},
'posturl' => 'missing-supermassive-black-hole',
'image' => 'https://www.mediafire.com/convkey/8957/hcxnjkzd33bcs5u6g.jpg',
'fbimage' => 'https://www.mediafire.com/convkey/8957/hcxnjkzd33bcs5u6g.jpg',
'metatitle' => 'Missing Supermassive black hole',
'metakeyword' => 'Missing Supermassive black hole',
'metadescription' => 'Scientists have been looking for the black hole using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, and have so far found no evidence.',
'author' => null,
'downlaodpdf' => 'https://www.mediafire.com/file/rb7baaxz3l6dgf7/1._Missing_Supermassive_black_hole.pdf/file',
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'currentaffairs'
}
$downloadpdf = 'https://www.mediafire.com/file/rb7baaxz3l6dgf7/1._Missing_Supermassive_black_hole.pdf/file'
$tags = '<a href="https://currentaffairs.studyiq.com/tags/space">Space </a>'include - ROOT/plugins/Studyiq/src/Template/Pages/tagdetails.ctp, line 161
Cake\View\View::_evaluate() - CORE/src/View/View.php, line 1196
Cake\View\View::_render() - CORE/src/View/View.php, line 1157
Cake\View\View::render() - CORE/src/View/View.php, line 765
Cake\Controller\Controller::render() - CORE/src/Controller/Controller.php, line 623
App\Controller\PagesController::tags() - APP/Controller/PagesController.php, line 995
Cake\Controller\Controller::invokeAction() - CORE/src/Controller/Controller.php, line 440
Cake\Http\ActionDispatcher::_invoke() - CORE/src/Http/ActionDispatcher.php, line 119
Cake\Http\ActionDispatcher::dispatch() - CORE/src/Http/ActionDispatcher.php, line 93
Cake\Http\BaseApplication::__invoke() - CORE/src/Http/BaseApplication.php, line 108
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Routing\Middleware\RoutingMiddleware::__invoke() - CORE/src/Routing/Middleware/RoutingMiddleware.php, line 104
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Routing\Middleware\AssetMiddleware::__invoke() - CORE/src/Routing/Middleware/AssetMiddleware.php, line 88
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Error\Middleware\ErrorHandlerMiddleware::__invoke() - CORE/src/Error/Middleware/ErrorHandlerMiddleware.php, line 98
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
