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Sentences for supernova?
"My, what is that new bright thing in the sky", "well I don't know about you, but it looks like a supernova to me".
How did gold form?
Gold formed through a process called supernova nucleosynthesis. During a supernova explosion, massive amounts of energy and pressure allow lighter elements to fuse together and create heavier elements like gold. This gold-rich material is then scattered into space, eventually coalescing to form planets like Earth.
What happened first big bang or supernova?
The Big Bang happened first. It is the beginning of the Universe as we know it - we don't know what happened before that.During the Big Bang, hydrogen and helium were formed; other elements were created later, through nuclear fusion - and some of those were ejected in supernova explosions.
Exactly how do scientist know that supernovae's have existed?
Because they have been observed with the naked eye, optical telescopes, radio telescopes and neutrino detectors.Look at a piece of gold, and you are looking at the result of a supernova explosion.
How do astronomers know that the Sun is located in a local bubble formed by a supernova?
There is no answer
When was the last supernova explosion?
Because of the distances involved, a supernova could have occured today, but we wouldn't know about it for thousands or billions of years. As with all things in space, what we observe is what was, not what is.See related questions for last observed supernova.
What is the cataclysmic event called in which an exploding star produces all of the elements heavier than iron?
A supernova. It is an explosion that crushes the core of the star into a black hole or neutron star, and blasts all of the remaining mass of the star out into space. We know that our Sun is a 3rd generation star, because the Earth contains elements like iron, gold, lead, or uranium that can ONLY be produced in a supernova. And us? We're star-stuff; the iron atoms in our blood and the calcium atoms in our bones has already been through at least ONE supernova explosion.
What are exploding stars?
Dangerous. Novas, or supernovas. Tycho Brahe coined the phrase "nova stellarum" when a "new star" appeared in the night sky. We now know that he was observing a supernova, the death throes of a very massive star.
Why should you know about earths layers?
we should know it is our earth
Why do some stars become red giants and others become supernova?
i dont know
How do you know what star becomes when it dies?
You will know what a star becomes when it dies based off of its mass. If the mass of the star is less than, around, or slightly greater than the sun's mass, it will become a white dwarf. If the mass of the star is a few solar masses, a supernova will happen and a neutron star will be created. If the mass of the star is many times that of the sun, it will explode in a giant supernova called a hypernova and create a black hole.
Origin of silver?
Past Supernova events have produced all the elements we now know, including silver.
