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> This is a document I wrote a while back, you don't have to read it all but I thought you might be interested in knowing some epik space things.
➤ Answer
Gravity.
➤ Reason
We meet again old buddy, gravity. When solar systems form, they need resources. Dust is optimal, any sort of cosmic dust that can pull together. The gravity of these groups of cosmic dust combine together into one gravitational pull, attracting more dust. They eventually start to squeeze together, heating up. This process continues until it is so hot, the first nuclear fusion process begins, the point where matter is so hot, the atoms cannot repel each other when colliding in time, and instead they smash directly into each other, releasing massive bursts of energies, each like atomic bombs. One reaction produces more heat, more energy, which causes more fusion, and it's a huge chain reaction. The gravity of the gas is strong enough to maintain its shape, making a round sphere, which we call, stars, balls of burning energy. Stars are not solid objects, they are rather just clumps of really, really, r e a l l y hot cosmic dust, roaring with energy.
other stuff
Planets form the same way, although on much smaller scales. There isn't enough dust to compact into a star, so they rather turn out to be large rocks. Stars that form with more dust, usually turn out to be bigger, but because they are bigger, they burn fuel more quickly, meaning the star will die a lot faster than a smaller, more calm and concentrated star. Newly form stars after there formation will slowly become more calm, and stay that way most of their lives. Then when they become old, they'll turn into violent supergiant stars, which eventually use their fuel, no longer have enough energy to maintain their gravity, and the fusion active core collapses under pressure, crunching the atoms together so quickly that they all collide together, resulting in the spectacular event we call a supernova, an explosion resulting from the core collapsing, ripping the outer layers of the star into space, which is what we call Novas, Nebulae that were formed from the remnants of what was once a star. If a star that is too small collapses after using its fuel, it won't explode. The core doesn't smash the atoms together fast enough to do this, instead, the core of the star simply crunches into a ball, called a white dwarf. The outer layers of the star no longer are being held onto the core, and expand into outer space, forming a nebula as well, which supply dust for new stars to form, therefore beginning the process of star formation once again. If a star that is large enough, collapses after using its fuel, the core crunches together so immensely fast, it warps the area so badly, it literally rips a tiny gap in space, which is like a hole in a pool, anything getting to close getting sucked in. Black holes are not the craziest idea really, everything has a limit, what do you think would happen if you compressed one of the greatest forces in the entire universe onto a spot the size of a pin head, yeah. Black holes as well are not solid or invisible objects, we just cannot see them in general. The black sphere that you once thought was the black hole, is actually just a simple result of a black hole. The escape velocity is greater than the speed of light, meaning that light doesn't travel fast enough to escape the pull of the black hole, so it is dragged back inside, and probably never seen again. Since the light never escapes, it doesn't reach our eyes, therefore, it is just a blind spot in our field of view, we can't see it.
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