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Could it have been a supernova explosion that happened some 2000 years ago?
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∙ 14y ago
Yes!!
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∙ 14y ago
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Can you see a star explode in your lifetime?
Yes. Supernova explosions are visible to the naked eye on average of once per century. In the 1054 AD, a "new star" or "nova stellarum" was observed to be visible in the daytime. These days, we call it the "Crab Nebula". It is entirely possible that a supernova could explode and be visible in your lifetime, although that would probably mean that it has ALREADY exploded and the light is on its way even now. However, it would be (so far!) impossible to predict such an event ahead of time. A supernova explosion releases unbelievably titanic energies. We wouldn't want one to explode within several hundred light years of us!
Could you stop a supernova blast or the solar flare finale that'd be big enough to incinerate all life on Earth while it's heading for us by nuking it or sending something with an electric charge?
No. If a nearby star were to go supernova, there would be very little we could do. Perhaps we could seek shelter in deep mine shafts, or in submerged submarines, or subway tunnels.In the next 50-60 years, it might be possible to develop protective material light enough and cheap enough to be deployed into orbit as a sort of "cosmic parasol", but nothing like that is on the drawing board at this time.Fortunately, there are no nearby stars that are likely candidates to become dangerous supernovas. The most likely star to go supernova that we're aware of might be Betelgeuse, the red supergiant star at the shoulder of Orion the hunter. Betelgeuse is about 800 light years away; far enough that if it were to go supernova, it would be at a safe distance, but near enough that it would put on a terrific light show.
Are the Big Bang and a supernova the same?
No. The Big Bang was the origination of the universe; a black hole is the death of a star. Answer The big bang was an explosive expansion of space-time from a singularity, marking the beginning of time and space. Supernovae are exploding giant stars that form (and explode) millions or billions of years after such things as Big Bangs. The Big Bang was not a true explosion, but an enormous expansion. Supernovae are hugely closer akin to explosions.
What is the biggest star that astranomers know of from biggest to smallest?
The biggest and brightest star we know of is S Doradus. It is a "hypergiant", and is so enormously bright that it can be seen with the naked eye - EVEN THOUGH IT IS IN ANOTHER GALAXY.S Doradus is burning its nuclear fuel so quickly that it cannot prevent exploding as a supernova within the next couple of million years. In fact, it may ALREADY have gone supernova- but since it is 180,000 light years away, we may not know it for a hundred thousand years or more, when the light finally makes its way here.
What happened for the first time in camp green lake in over a hundred years?
what happened for the first time in over a hundred years at camp green lake in the book holes
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 general size of supernova?
a supernova is an explosion, a moving event, so it's diameter is time dependant.
Why are supernova considered factories for the production of heavy elements?
Many Supernova explosion is a result of a nebula the Nubula was the reason why we have a sun 5 billion years ago and today.
Is crab nebula same as supernova?
It's not the same as a supernova--the Crab Nebula is the visible remnant of a supernova event which occurred about 7,500 years ago. The light from the supernova explosion reached the earth and was observed by Chinese and Arab astronomers about 1,000 years ago. The Crab Nebula was the first object to be identified with a supernova which was actually observed during recorded history.
How many years ago did the big explosion occur?
What explosion And if you are talking about the Big bang it happened about 13.7 billion years ago
When did the explosion of Halifax happen?
The Halifax Explosion Happened On December 6 In 1917. You Can Remember The Year Because If You Know What Year The Titanic Sank, The Halifax Explosion Happened 5 Years After That.
How long would it take for us to know about a star that goes supernova from 500 light years away?
The light of the explosion wouldn't arrive at the Earth for 500 years.
What kind of storms do black holes and supernovas cause in Earth's upper atmosphere?
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.
What happened some years ago in Russia from nuclear explosion?
When and what explosion? One of the nuclear test shots. If so which?Remember Chernobyl was not a nuclear explosion, it was a steam explosion and graphite fire.
Which star has the greatest probabilty of producing a supernova explosion?
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.
Stars brighter than others?
You bet. Stars are the brightest, except for a supernova explosion they are visible to the naked eye though being millions of light years out of reach.
How far from a supernova do you have to be to be safe?
About 50 to 100 light-years as the closest safe distance between Earth and a supernova. But, if a supernova to go off within about 30 light-years of us, that would lead to major effects on the Earth, possibly mass extinctions.
