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If a supernova - or any star, for that matter - would have hit Earth, the Earth would have been utterly destroyed. Earth still exists, ergo this didn't happen.
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However, it is likely that a supernova - more precisely, SEVERAL supernovas - CREATED the Earth.
The Earth is made of heavy elements; iron, lead, uranium, gold, and heavy metals in addition to the lighter stuff like carbon, oxygen, silicon, and magnesium. The point is that the original Big Bang was composed of mostly hydrogen, a little helium, and traces of lithium; the LIGHTEST elements. So where did the metals come from? Supernova explosions are the only way that heavy elements can be created and thrown back into space.
So the dust and gas left over from a few supernovas gathered together as a nebula. But what would cause a nebula to collapse and form a star and a solar system? Our theories indicate that the shockwave of a "nearby" supernova might easily have been the final impetus to cause a nebula to coalesce and form a solar system.
Other supernova explosions may have been responsible for some of the mass extinctions that we see in our historical record. Several times in the past, we know that most living things on Earth all died quite suddenly. Some of these - for example, the dinosaurs - were probably caused by asteroid impacts into the Earth. But some may have been caused by the radiation from a supernova explosion.
What else can I help you with?
What is the Vela Supernova?
The Vela Supernova is the remnant of a supernova explosion that occurred in the Vela constellation about 11,000 to 12,300 years ago. It is located about 800 light-years away from Earth and is one of the closest known supernova remnants to us.
Why doesn't a supernova occur on earth?
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.
Can you see a supernova from earth without a telescope?
Yes, under the right conditions, a supernova can sometimes be visible from Earth without a telescope. However, most supernovae are too faint to see with the naked eye, so a telescope or binoculars are usually needed for observation.
Are supernova dangerous to the earth?
A near Earth supernova [See Link] is a supernova that occurs close enough to the Earth (less than 100 light-years away) to have noticeable effects on its biosphere. Gamma rays from a supernova induce a chemical reaction in the upper atmosphere, converting molecular nitrogen into nitrogen oxides, depleting the ozone layer enough to expose the surface to harmful solar and cosmic radiation. This has been proposed as the cause of the Ordovician extinction - [See link], which resulted in the death of nearly 60% of the oceanic life on Earth. Type Ia supernova [See Link] are thought to be potentially the most dangerous if they occur close enough to the Earth. Because these supernova occur from dim, common white dwarf stars, it is likely that a supernova that could affect the Earth will occur unpredictably and take place in a star system that is not well studied. The closest known candidate is IK Pegasi [See Link] Recent estimates predict that a Type II supernova would have to be closer than 26 light-years to destroy half of the Earth's ozone layer.
Where did iron originate?
Iron originally formed in the cores of massive stars through nuclear fusion. When these stars explode in supernova events, the iron is scattered into space where it can eventually be incorporated into the formation of planets, including Earth.
What would happen if a super nova hit earth?
A supernova is an exploding star. The Earth would be instantly incinerated, of course. There is approximately zero chance this will ever happen, though. If there was a supernova near Earth ... it would depend on how near. Betelgeuse is a good candidate for a supernova "soon" (within the next million years or so). Scientists who have modeled supernova explosions don't expect it will have much of an impact. If a star nearer than Betelgeuse were to go supernova, then it might be more serious.
How many bombs hit earth from planes?
All of them. Every bomb ever dropped hit the earth. Somewhere.
What is the worst flood ever to hit the earth?
its called the crust
Will earth ever get hit by an asteroid again?
Almost certainly.
Which band had a hit song champagne supernova?
Oasis
Has the earth ever been hit by an asterriod?
yes many times
How many light years away does a Supernova have to be to destroy Earth?
For a supernova to directly destroy Earth, it would need to be less than 10 light years away. However, even if a supernova were to occur farther away, its effects on Earth's atmosphere and climate could still be substantial.
What is the Vela Supernova?
The Vela Supernova is the remnant of a supernova explosion that occurred in the Vela constellation about 11,000 to 12,300 years ago. It is located about 800 light-years away from Earth and is one of the closest known supernova remnants to us.
Is a supernova bigger than earth?
Much bigger. Earth is a relatively small planet, much smaller than even a dwarf star. A supernova is a very large star exploding.
Why doesn't a supernova occur on earth?
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.
Will a asteroid ever hit the earth?
yes! it depend to gravitational pull and the weight of an asteroid
When was the first meteor that ever hit earth?
Probably about 4.6 billion years ago.
