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What else can I help you with?
Name of first stars in universe?
We only name things that we can see, or detect. The first stars in the universe were likely supergiant stars that exploded in supernova explosions within a few hundred million years. The material blasted into space by the first three or four generations of rapidly-dying stars provided the raw material that came together to form our solar system.
Were Most of the elements heavier than helium made during the first few minutes after the big bang?
According to the big bang hypothesis, hydrogen was the only element created after the big bang. Within the first few minutes, the temperature was hot enough for fusion to occur, enabling helium, lithium and a few other elements to be created. After about 3 minutes, the Universe cooled sufficiently, for this process to halt. It was not until about 500,000 million years later, when the first stars went supernova, that heavier elements were seeded into the Universe.
What is the diameter of the Shapley supercluster?
Super clusters do not have defined boundaries, not a defined shape. A ballpark figure would put the diameter at about 100 million light years, but extending to about 250 million light years at the extreme. See related link for a pictorial of the cluster
What was formed at the same time as the sun?
Most of the planets probably formed within a million or so years of the time the Sun formed. That sounds like a long time, but for an astronomer that's a pretty short period. Looking further out, it's entirely possible that several nearby stars were formed about the same time as our solar system. Some theories of stellar formation suggest that a stable nebula of gas and dust is unlikely to coalesce without some external impetus, such as the shock wave from a "nearby" supernova. And we know that our solar system was formed from matter blown into space by probably several previous supernova explosions. (Otherwise, there would be no heavy elements such as lead, gold, or uranium - elements only created in supernova explosions! - on the Earth.)
How many neutron stars are in milky way?
It is estimated that there are several hundred million neutron stars in the Milky Way galaxy, with more being created through supernova explosions over time. However, only a small fraction of these neutron stars have been detected and studied so far.
Do most of the supernova explosions occur in a star cluster happen during the first 100 million years?
Yes, most supernova explosions in star clusters occur within the first 100 million years of the cluster's formation. This is primarily because massive stars, which end their lives as supernovae, have shorter lifespans and evolve rapidly. Consequently, the high rate of massive star formation in young clusters leads to a significant number of supernovae happening in this initial period. After this time, the rate of supernova occurrences decreases as the massive stars have already exploded.
Abundance of boron in the universe?
Boron is a relatively rare element in the universe. It is primarily formed during supernova explosions and cosmic ray spallation processes. The abundance of boron is estimated to be around 1 part per million by mass in the universe.
Name of first stars in universe?
We only name things that we can see, or detect. The first stars in the universe were likely supergiant stars that exploded in supernova explosions within a few hundred million years. The material blasted into space by the first three or four generations of rapidly-dying stars provided the raw material that came together to form our solar system.
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.
What are the two largest known stars in the universe?
1. VY Canis Majoris 2. Betelgeuse (which is scheduled to supernova sometime between 2012 and a million years from now)
What has the highest specific gravity in the universe?
Would be the same as asking, "What is the densest stuff in the universe?" As far as I know, the stuff that theoretically makes up black holes is quite probably the densest stuff in the universe. As far as elements, Osmium (atomic number 76) is the densest with a specific gravity of 22.587 +/- 0.009 g/cm^3 according to Wikipedia.A2. and neutronium lies in between the above two.
When will 24 hours of light exist on Earth because of a star going supernova?
When the second largest known star, in the universe, goes supernova, this will occur. (Estimates range from this happening in the year 2012, all the way to one million years from now.) The name of this giant star is Betelgeuse.
Is a cluster a group of galaxies?
the Virgo Cluster is a cluster of galaxies at a distance of approximately 59 million light years
Is the Coma cluster the nearest cluster?
The Coma cluster is one of the nearest clusters but it is not the nearest. At a mean distance of about 321 million light years the Virgo Cluster is closer at a mean distance of only 59 million light years.
Is Virgo Cluster a group of galaxies?
the Virgo Cluster is a cluster of galaxies at a distance of approximately 59 million light years
What plutonium isotope has 144 neutrons?
The plutonium isotope with 144 neutrons is plutonium-244. It is a rare and long-lived isotope with a half-life of about 80 million years. It is produced in supernova explosions and has potential applications in nuclear weapons and spacecraft power sources.
What happens after a nebula contracts and it temperature increases to 10 million k?
A supernova occurs.
