Black Holes And Revelations: Discovered Gravitational Waves All Around Us!
173Famous rock-band Muse was definitely onto something in 2006 with their album Black Holes and Revelations! I would definitely recommend you give it a listen. But before you do, let’s see what the Universe has been hiding from us.
We keep looking for ways to build time machines, but turns out they have been there all along. As time passes and technology grows, we discover new ways to see through time, which is an incredible opportunity given to us.
One such intriguing concept is gravitational waves, ripples in the fabric of spacetime caused by the movement of massive objects. These waves were first predicted by Albert Einstein in his theory of general relativity over a century ago but remained elusive until very recently. In a groundbreaking discovery, scientists detected the faint echoes of the gravitational wave background, ushering in a new era of astronomy and unveiling a previously hidden aspect of the universe.
If this background exists, it challenges what we know about the hierarchical formation of the Universe, as mergers of massive objects would have happened so early on, meaning that they existed so early on!!!!
Without their existence, we would indeed have remained absolutely clueless!
We will see how quasars helped us find the cosmic microwave background and how pulsars showed us something we could have never dreamt of finding!
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Quasars: What are they?
Quasars, short for quasi-stellar radio source, are incredibly bright and distant objects found at the far reaches of the cosmos. They were first discovered in the 1960s, and their true nature remained a puzzle for many years.
Pulsars: What are they?
It is easy to confuse quasars and pulsars, but they are actually different types of objects in the Universe.
Pulsars are one of the most intriguing astronomical phenomena out there, and trust me, the Universe has no shortage of wonders. They are the remnants of massive stars that have gone supernova. When these titanic explosions occur, the core of the star collapses under its own gravity, forming a neutron star.
Quasars and the Cosmic Microwave Background
But quasars have another intriguing feature that has recently caught the attention of astronomers: their ability to measure the new background of the universe!
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Pulsars and the Gravitational Wave Background
As fascinating as quasars are and how much they have helped us figure out our origins, the littler pulsars are just as useful.
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Possible Theories
Astronomers have found potential black hole couples using different types of telescopes, but now they have a new tool: these famous gravitational waves. These waves can point them in the right direction to search for electromagnetic waves and study black hole pairs in detail.
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Credits: Ron Miller, Mark A. Garlick / MarkGarlick.com ,Elon Musk/SpaceX/ Flickr
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00:00 Intro
1:40 what are quasars?
2:25 Accretion disk
3:40 what are pulsars?
5:32 Quasars and the Cosmic Microwave Background (cmb)
7:06 The Cosmic Dawn
8:00 Pulsars and the Gravitational Wave Background
11:38 possible theories
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#gravitationalwavebackground #quasars #pulsar
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