Do the stars burn all hydrogen and turn it to other elements? Does that mean hydrogen will burn out?
how do they know half the stuff they show in the video, is it a guess or do they have actual proof? How do they know anything about the distance of the stars?
The idea of the ladder is to start with nearby objects like stars. We can measure their distances using a method called parallax. Back in the 90s a satellite called Hipparcos used parallax to measure the distance to thousands of stars. Once you know how far away a star is you can calculate how bright that star is.
What happens to a Black Hole after its life? Does it leave anything behind?
A Black Hole never ends, according to modern scientists. The Black Hole is the death of a large mass star. Therefore the strong gravitational pull is all that is there. However it is not "left behind" because a Black Hole can not die.
How do they know that carbon is the killer of stars?
Iron is the killer of stars not carbon.
Do we know what a neutron star is really made of (what materials)?
Neutron stars are made up of highly compacted neutrons. Neutron stars are made up of neutrons from all elements if that makes sense.
How can scientists recreate a star on Earth, because it is nothing like space?
Scientists use a huge machine to heat temperatures to immense heat and fuse together protons like a star.
What make Iron particles different from the rest making it so they can't fuse?
Stars can't reach a high enough temperature (unless if a supernova) to fuse iron. Iron also absorbs energy.
Can a star's light still travel to Earth even after it dies?
The odds that a star will die while its light is already on its way to earth is really small. For this to happen the star would need to be super duper close to the end of its life. So yes, it could happen but the chances that it does is really small.
Why is a neutron star so dense?
The remaining matter continues to collapse under gravity. This forces protons and electrons to squish together and become neutrons. The particles squishing together increases its density
The remaining matter continues to collapse under gravity, forcing electrons and protons to be squashed together and become neutrons.
A Neutron star is so Dense because all the Remaining matter inside a star continues to collapse, under gravity, forcing electrons and protons to be pushed together and become neutrons to make it so dense.
can a sun be made out of a black hole?
If all stars have varying masses and elements, how do scientists know the rate that stars burn through hydrogen and how can they collect data to predict when a star will die?
The hydrogen atoms inside the star collide together which creates heat which also create visible light. This is the time we can see the stars. This heat creates pressure forcing the atoms outside the star, but gravity pulls them together, the star burns out once there is a balance of pressure pushing and the pressure of gravity pulling them together, so when the star runs out of energy or fuel.
Why do some stars form as high mass stars and low mass stars if they start they same way? Why some do some form smaller than others?
Stars either form as high or low mass starts depending on the amount of matter they form from. Little matter or less matter leads to low mass starts and lots of matter leads to high mass stars.
How long do black holes live?
Well Morgan! It depends on the size of the black hole, it takes at least 67-100 years for a small black hole (with the mass of the sun) to die out or evaporate. The bigger black hole could live for much longer but not forever
How do we know V.Y. Canis Majoris is 1 billion times bigger than the sun
After a supernova can there be a Neutron star and a Black Hole at the same time?
No, that is not possible. The neutron star/black hole is the remnant of the dead star's core. Only one can occur at a time.
Why does iron take energy from the star? Why does it need it?
It doesn't, it just can't be fused, but the star doesn't "know" that so it tries until it runs out of energy.
How and why is a white dwarf formed?
The red dwarf star sheds its outer layers and forms a planetary nebula, the star leaves behind its core or in other words a white dwarf.
I meant how do they know iron is the killer of stars, not carbon.
Well Matthew, Scientists know that iron is the killers of stars because iron burns up energy so fast that the star will die out. Carbon occurs earlier on and the stars will usually die in seconds after it produces iro.
When scientists tried to recreate the supernova, how do they actually prove that what they are doing is exactly what happened in the universe?
Why is it that, one sugar cube size of a white dwarf can be so dense and heavy that it acts like Thor's hammer and drives through the ground?
The white dwarf wasn't worthy
Is it possible for Nebulas to create too many stars at once?If so what would happen?
What might happen if two or more stars were to form very close to each other... so close that their gravitational pull draws them to collide? What would happen next?
If a star turned into a white dwarf would it have a much stronger gravitational pull because of its density?
How did they come up with a black dwarf star? Why does there need to be a black dwarf star?
What would happen if two black holes were too close to each other?
Will we ever be able to find out more about black holes?
What makes two chemical elements want to fuse together?
Is there another way for a star to be other than a Neutron star after a black Hole occurred?
Why is light considered the fastest thing in the universe if the universe expanded at something greater than that speed? Wouldn't there be something else that would be faster?
The expansion of the universe can be faster than light because the edge of the universe doesnt carry any information (which is defined as 'anything that differentiates on thing from another) whereas light has information, as it is energy.
How can Iron kill a star with in seconds while the actual star its self took millions of years to form ?
Why is a white dwarf planet so dense?
How do they know how hot the core of a star is?
why are black holes so dangerous and how do we know that they are dangerous?
Black holes are only dangerous if you get to close. As long as you stay away from its event horizon, it won't harm you. Scientists use telescopes and satellites that travel in space, to learn more about what is happening in the universe.
How do we know how stars where created?
Why didn't different elements come out of the big bang if in was hot enough like a star?
how did scientists come up with the theoretical black dwarf? what evidence do they that leads to this theory?
How long do scientists think it would take for a white dwarf to become a black dwarf?
Well, to start off, the reason a black dwarf star is theoretical is because the Universe is not old enough to have even produced one. A white dwarf will have had to cool down to the point of no longer emitting any heat or light at all, but this process would take an estimated 13.8+ billion years (which is how old the Universe is).
How did we come up with the idea of black dwarfs if we have not witnessed one?
Well, the idea of a black dwarf is theoretical, so we don't know if they really are real or not. But we do know that a white dwarf star is real, and we know that eventually, it would cool down. By that time, it will be so cold that it won't even emit any light, so it would become "black". But this would take so long, that we have no way of knowing if it would ever really occur.
How do scientists know what kills stars?
Why is there a giant diamond inside of a white dwarf?
Is it possible for a black hole to be large enough and powerful enough to end the universe?
Luckily, no. Chances are, a black hole could not even grow to the size to swallow an entire galaxy. But black holes CAN grow. For a black hole's gravity to come into effect, an object must come extremely close. Then by absorbing the nearby object's mass of gas and dust, the black hole will increase in size, and revolving disks of gas will grow around it. But there is a point where the black hole would no longer be able to sustain the mass of the gas disks encircling it, and that gas would collapse into stars.
Whats the closest star ever to explode near earth
Nearest supernova: 2.5 million years ago, 150 light years away
What is the minimum mass for a star? A maximum?
Minimum= About .08 solar masses. Any less than that, and a star cannot even begin the nuclear fusion.
Maximum= About 150 solar masses. Any more than that, and the star will immediately collapse in on itself and become a black hole/neutron star/white dwarf.
Can Anything have more mass than a black hole?
As far as we have been able to observe, no, nothing can have more mass than a black hole. A black hole's mass is so great that it's gravitational pull prevents light itself from escaping. And that is exactly what black hole's are known for, nothing else has gravity as powerful.
What is the process of Star formation after fusion dies out?
Does a star gain mass in order to create a black hole?
A black hole is the remnant of a collapsed high mass star. However, in the years before the supernova explosion, the star actually loses a fraction of its mass. After the supernova explosion, usually only the dense compressed mass of the core is left, therefore the star does not gain mass to make a black hole.
How long does it take for a black hole to form?
Why do some stars high mass stars form black holes and some don't?
why do massive stars create black holes?
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