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Super massive "Black Hole" and Quasar in the center of a Galaxy In this vast universe, there are several galaxies with a black hole and quasar in its midst... but, these objects are so mysterious that more we want know them the more distant they seem. QUASAR Quasars, the most distant objects discovered by astronomers in the Universe, are very bright, large point-like objects just like stars; most are larger than our  Solar System , and they radiate enormous amounts of energy. Quasars can be a trillion times brighter than the   Sun ; they radiate more energy than 100 normal   galaxies   combined. Quasars are most likely the centers of active galaxies, and may produce their energy from the huge black holes found in the center of the galaxies in which the quasars are located. Quasars drown out the light from all the other   stars   in the same galaxy because they are so bright. Quasars look like stars, but are much farther away than stars in our galaxy

What is a PULSAR...    A pulsar  is a highly magnetized rotating  neutron star  or  white dwarf  that emits a beam of  electromagnetic radiation . This radiation can be observed only when the beam of emission is pointing toward Earth, and is responsible for the pulsed appearance of emission. Neutron stars are very  dense , and have short, regular rotational  periods . From Earth, pulsars often look like flickering stars. On and off, on and off, they seem to blink with a regular rhythm. But the light from pulsars does not actually flicker or pulse, and these objects are not actually stars.  Pulsars radiate two steady, narrow beams of light in opposite directions. Although the light from the beam is steady, pulsars appear to flicker because they also spin. It's the same reason a lighthouse appears to blink when seen by a sailor on the ocean: As the pulsar rotates, the beam of light may sweep across the Earth, then swing out of view, then swing back around again. To an astron

 SUBTERRANEAN WATERFALL  There are many fasnitating wonders in this world and one of these are a undergroud waterfall ....  these waterfall hidden from world flows in depth of this world, so lets know more about it.       Subterranean Waterfall or underground waterfall are a type of waterfall which are located    underground or in a cave. Subterranean waterfall are present on or under sea level. They are a   common feature in cave systems where there are vertical or near vertical geological structures for the weathering process to exploit, and sufficient gradient between the sink and the rising. Vrtoglavica Cave's waterfall are the worlds longest underground waterfall present in Slovenia,Italy. its height is around 400m (1,300 ft)     A renowned example of sunterranean waterfall are Ruby falls present in United States,which is largest and deepest underground waterfall present in America. some other examples are Lacy suicide falls in virginia, Natural brigde in