No one really knows the cause of the big bang as we cannot see any further back than the 3K microwave blackbody radiation, when matter and energy decoupled about 1 to 2 billion years after the moment of the big bang. No stars or atoms or even subatomic particles existed at the moment of the big bang. Not even space or time (as we understand them) existed at the moment of the big bang. All that existed at the moment of the big bang was an empty quantum vacuum (which is not allowed by Heisenberg's uncertainty principle). What happened to convert an empty quantum vacuum to our expanding universe full of matter and energy has generated many (mostly untestable) ideas:
Also it is very important to realize that the big bang is not just an event in the past starting the expansion, it is a continuing process that is happening now, it is the expansion of space dragging matter and energy along with it.
Since that was a supernova explosion, that would most likely produce all elements that occur naturally, except hydrogen (element #1).
There are many, as too there are many stars. Most supernova explosions are outside of our Galaxy and can occur at any time. So when a supernova explosion is witnessed, it's a rare event. Within our galaxy, or at least within visual with the naked eye, it has to be Betelgeuse. At only 600 light years from us, it is already experiencing the precursor to a supernova eruption. When it will occur - or more correctly - when will we observe it, is any ones guess, but it is expected within humanities lifetime.
None for now. However, should a supernova explosion occur in our "neighborhood" (anywhere within a few thousand light-years in this case!), the strong radiation might have a severe impact on life on Earth.None for now. However, should a supernova explosion occur in our "neighborhood" (anywhere within a few thousand light-years in this case!), the strong radiation might have a severe impact on life on Earth.None for now. However, should a supernova explosion occur in our "neighborhood" (anywhere within a few thousand light-years in this case!), the strong radiation might have a severe impact on life on Earth.None for now. However, should a supernova explosion occur in our "neighborhood" (anywhere within a few thousand light-years in this case!), the strong radiation might have a severe impact on life on Earth.
After the Big Bang itself, we vote for the explosion of a 'supernova' or possibly a black hole.
A black hole is often the RESULT of a supernova explosion. When a massive star dies, the star explodes. The core of the star is crushed, while the outer layers of the star are blown away into space. This explosion is a nova or supernova. The early astronomers, seeing a burst of light where no star had ever been seen before, called them "nova stellarum", or "new star". When the core of the star is crushed by the explosion, the result is a neutron star or a black hole, depending on how densely the core is collapsed.
A supernova can't occur on any planet. A supernova occurs when a very large star, at least 8 times more massive than the sun dies.
An immediate explosion can occur at any moment.
because hot gasses expand
1986
immediate
immediate
If two stars begin to orbit. However, novae are more common that supernovae, so you can't really say if the result of a binary will be a nova or a supernova.