The Supermassive Black Hole is missing.
                     THE SUPERMASSIVE 
BLACK HOLE IS 
MISSING
  
INTRODUCTION
+ A supermassive black hole, which is estimated to 
weigh up to 100 billion times the mass of the Sun, is 
seemingly missing, leaving astronomers perplexed.
 
Source: indianexpress.com
 
NO CONFIRMATION
+ Researchers used the Chandra X-ray Observatory and the 
Hubble space telescope and have been digging for a black 
hole to date and have not seen any confirmation that it is 
there where it can be found. 
 
Source: Wikipedia
 
BLACK HOLE
+ 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.
+ Not surprisingly, several consumers of social media shared 
confusion for the position of black hole, expected to be 
centrally situated in the middle of the galaxies down.
 
Source: indianexpress.com
 
DISTANCE FROM GALAXY
+ 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. 
 
Source: livemint.com
 
SO, WHAT COULD HAVE HAPPENED?
+ Every single larger galaxy in the Universe is centred 
around a highly massive black hole which, according 
to NASA, has the masses of millions. 
 
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SAGITTARIUS A
+ The Black Hole is nicknamed the Sagittarius A, 
which is just 26,000 light-years away from planet 
Earth at the centre of our galaxy the milky way.
 
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CENTRE OF THE ABELL GALAXY
+ 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.
 
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WHY CONFUSION?
+ An explanation for this, according to a team of 
Michigan University USA officials, could be because 
the black hole Abell fell from the galaxy heart. 
 
Source: indianexpress.com
 
CHANDRA OBSERVATORY
+ The reports, which based their logic in 2018 from 
NASA's Chandra Observatory, conclude that this 
may have arisen because of the merger of two 
smaller galaxies to form a unit in which the merging 
of each of their black holes was followed by a black 
hole.
 
Source: indianexpress.com
 
‘RECOILING’ BLACK HOLES
+ When two black holes merge, they release what are known as 
gravitational waves invisible ripples travelling at the speed of 
light, which squeeze and stretch anything in their path. 
+ As per the theory of gravitational waves, 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. This is known as a “recoiling” black hole.
 
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