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Blog

Our Sun Will Never Become a Black Hole

4/28/2017

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This is great news for our sun and our world. Our Sun is 4.5 billion years old and while that sounds old, it isn't. It is middle-aged.  Our Sun has burnt through about half of its supply of hydrogen. That is our Sun's fuel. It fuses 4 billion kilograms of hydrogen per second into helium.  In that process, it produces heat and light that reaches our world in about 9 minutes, to provide life-giving warmth. Otherwise, our world would be as cold and desolate as Mars.
White Dwarf
So what happens to our Sun when it runs out of hydrogen? Well the latest theory predicts that our Sun will dwindle and collapse under its gravity to a much smaller white dwarf. At this point it will not produce enough energy to heat the Earth.
Super Nova
However, other stars that are about 10 times the size of our Sun have a different fate. These stars explode in something called a "super nova".  These explosions are enormous and extremely destructive, distributing their mass into the universe for future star birth. These stars are massive so they have enormous gravity, which condenses the mass into a neutron star. This is a star with mass composed entirely of neutrons with no protons. A teaspoon of its matter would weigh a billion tons on Earth!
Picture
Picture
Stars that are about 20 times the size of our Sun have yet a different and more intriguing ending.  These stars are so massive and burn so intense and have such a large gravitational pull that their ending is the most spectacular cataclysm of the cosmos. When these stars burn out of fuel, their massive gravitational pull takes over and sends them into implosion from which they cannot recover. Core temperature reaches 100 billion degrees. Gravity is so intense that all of its mass is collapsed into a single point or singularity. Nothing can escape this singularity, not even light. 
This is a black hole, where all our laws of physics break down. No-one really knows what happens in a black hole, but they know that every galaxy in the universe has a black hole at its center and some are bigger than others. Even our own Milky Way Galaxy has a black hole at its center that is 4.3 million times heavier than our Sun.
Black holes have such an enormous gravitational pull that they can attract other galaxies, and consume entire stars.  When they consume star matter, there is x-ray radiation emitted in astounding jet rays millions of miles long (see below-compliments www.astronomyfactbook.com)
Picture
There is a lot of information being gathered on Black Holes and we are only in the very early stages of understanding them.
​

Maddalena Environmental Inc.
Al Maddalena
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