Hello October! 😄 This month is special in so many ways. We celebrated Ooorah's 11th birthday on 3rd October and also have Halloween almost at the door. I admit there are still 21 days to go, but well... we have horror in its full element and flow. Calls for a celebration, right?

This month we are talking about a genre, a punk that has always fascinated from time immemorial. I'm no vampire, though, but it is what it is. And for those of you who are wondering, there's a lot of Blackhole gravitational pull in the air. Yes, it's Blackhole all the way, today.

The definition of Blackholes is very simple. And there's where the simplicity ends and we dig into the dense complexity of these objects.

Blackholes are places in spaces where the gravity pull is so hard that nothing, I repeat, nothing can get out. Not even light. The reason for the fact that gravity is so strong, is for matter being squeezed into a teensy weensy space. It can also happen when a star dies.

Because no light can get out, blackholes are practically invisible to the naked eye. You need special space telescopes to find and see these celestial wonders on how different or unique they are from normal stars. Our Milky Way galaxy alone contains more than 100 million ones.

Blackholes come in diverse shapes and sizes. Known as stellar, non-stellar and supermassive.

Stellar blackholes can be up to 20 times more than the mass of our sun. They are created when the big star collapses and gets sucked into it's own gravity, causing a supernova in the process.

There are innumerable stellar blackholes spread across galaxies.

The largest blackholes are known as "supermassive", with masses more than one million suns combined. According to scientists, supermassive blackholes were formed at the same time as the galaxy they were a part of.

A supermassive blackhole - Sagittarius A, lies at the heart of the Milky Way. Its structure is equal to around 4 million times the mass of the sun and likes approximately 26,000 light-years away from Earth.

For their observations of Sgr A(Sagittarius A), the American astronomer Andrea Ghez and German astronomer Reinhard Genzel were awarded the Nobel Prize for Physics in 2020.

The mass of a blackhole is calculated by using Albert Einstein's theory of general relativity developed during 1907- 1915. E = mc².

Essentially, it means that instead of gravity being an invisible force that attracts objects to one another, gravity is a curving or warping of space. The more massive an object, the more it warps the space around it.

The singularity(a point where some property is infinite. According to classical theory, at the center of a blackhole, the density is infinite as a finite mass is compressed to a zero volume. Hence it is called a singularity) is the centre of the black hole and is hidden by the surface called the event horizon--better known as the Schwarzschild radius, in memory of the German astronomer Karl Schwarzschild, who predicted in 1916 the existence of collapses stellar bodies emitting no radiation. The size of the Schwarzschild radius is proportional to the mass of the collapsing star. A black hole with a mass 10 times as that of the Sun, the radius would be 30 km (18.6 miles).

The first image of a supermassive black hole at the center of the M87 galaxy 55 million light-years from Earth, was captured in 2019 by the Event Horizon Telescope (EHT) collaboration. It has a mass equal to six and a half billion Suns but is only 38 billion km (24 billion miles) across.

The existence of another kind of non-stellar black hole was proposed by the British astrophysicist Stephen Hawking. According his theory, numerous tiny primordial black holes, possibly with a mass equal to or less than that of an asteroid, might have been created during the big bang, a state of extremely high temperatures and density in which the universe originated 13.8 billion years ago. These so-called mini black holes, like the more massive variety, lose mass over time through Hawking radiation and disappear. If certain theories of the universe that require extra dimensions are correct, the Large Hadron Collider could produce significant numbers of mini black holes.

I've expanded so much on blackholes that there's one more Blackhole you might be interested in.

The Blackhole are an English hardcore punk band from Hemel Hempstead and Berkhamsted, England. It was formed in 2007 by singer Richard Carter and guitarist Andreas Yiasoumi when their previous bands fell apart. Along with others, the Blackhole have toured across the UK with Cancer Bats, Every Time I Die, The Ghost of a Thousand and Johnny Truant. Currently signed to UK record label Search and Destroy, the band members consist of Max Hart on bass, Alex Hunt on drums, Nick Mitchell, Andreas Yiasoumi on guitar and Richard Carter on lead vocals. Richard Carter is the brother of Frank and Steph Carter from the famous British hardcore punk band- Gallows.

Parting ways in November 2010, the band reunited In September 2015 to support Frank Carter & The Rattlesnakes on tour. They announced a new album in February 2016.

With this, I type out the end. It's been wonderful talking with you. I couldn't find any blackhole related stories on Wattpad. If you come across some, feel free to link them in the inline comments. I look forward to your recommendations 😄

Till December, this is me--Nab, saying goodbye and take care ❤️

By Nablai