What is the maximum realistic average density of a rocky planet?
I know Earth is around 5.5 g/cm^3 and is one of the densest in our solar system, but
can they realistically get even heavier, I'm thinking in the 7 to 8 g/cm range?
How much detail can there be in an instant death?I am spontaneously teleported to the surface of Venus. How do I die, in excruciating detail?
Your death would be pretty similar to being teleported into the ocean at 950 m depth. Your death is instant and your body will be crushed by the pressure. Then, within the next few hours you will be baked dry but not burn.I am spontaneously teleported to the surface of Venus. How do I die, in excruciating detail?
It's a billion years in the future. Even if the sun continued doing what it does now, and Earth's interior continued its business, nothing that we create will last a billion years. Most rocks you'll find are younger than a billion years. Even in a million years everything created will be lost unless recreated many times over.The sad thing about this is that Earth will be exactly like Venus in the future, and probably even hotter, because of runaway greenhouse effect...
This is so sad to think about. Everything we created in these years, even the most durable thing in the most quiet place of the world will be erased.
Forget billion years, in a million years we'd better have colonized the galaxy or we'll be extinct.It's a billion years in the future. Even if the sun continued doing what it does now, and Earth's interior continued its business, nothing that we create will last a billion years. Most rocks you'll find are younger than a billion years. Even in a million years everything created will be lost unless recreated many times over.The sad thing about this is that Earth will be exactly like Venus in the future, and probably even hotter, because of runaway greenhouse effect...
This is so sad to think about. Everything we created in these years, even the most durable thing in the most quiet place of the world will be erased.
I threw your question at ChatGPT:I have a question, hypothetically speaking if a M9 Red Dwarf Star was in the oort cloud, would it be visible from Earth? What is the upper mass / spectral category a star can have in the oort cloud, without it being visible from the Earth? Just asking for a worldbuilding project.
Well. It argues well, but I really wouldn't trust it. If a star as bright as the Sun could be considered "a relatively bright star" and were in the Oort cloud, it would definitely be visible from Earth. Even at 100,000 AU it would be as bright as the brightest stars in the sky.It is unlikely that a M9 red dwarf star in the Oort cloud would be visible from Earth. The Oort cloud is a region of space that surrounds the solar system, and it is thought to contain billions of comets. A M9 red dwarf star is a very small and faint type of star, and it would likely be too dim to be seen from Earth even if it were located in the Oort cloud.
The upper mass limit for a star to be considered a red dwarf is around 0.8 solar masses. Stars above this mass limit would not be considered red dwarfs, and would likely be brighter and more visible from Earth. However, the Oort cloud is so far away from Earth that even a relatively bright star located there would be difficult to observe from our planet.
I also tried asking scientific questions to ChatGPT and the answer was satisfying... surely well written and looks accurate. Can't really tell if the information is correct since there is no source. If ChatGPT could include sources it would be much easier to trust!I threw your question at ChatGPT:
Yes this part makes no senseI threw your question at ChatGPT:I have a question, hypothetically speaking if a M9 Red Dwarf Star was in the oort cloud, would it be visible from Earth? What is the upper mass / spectral category a star can have in the oort cloud, without it being visible from the Earth? Just asking for a worldbuilding project.
Well. It argues well, but I really wouldn't trust it. If a star as bright as the Sun could be considered "a relatively bright star" and were in the Oort cloud, it would definitely be visible from Earth. Even at 100,000 AU it would be as bright as the brightest stars in the sky.It is unlikely that a M9 red dwarf star in the Oort cloud would be visible from Earth. The Oort cloud is a region of space that surrounds the solar system, and it is thought to contain billions of comets. A M9 red dwarf star is a very small and faint type of star, and it would likely be too dim to be seen from Earth even if it were located in the Oort cloud.
The upper mass limit for a star to be considered a red dwarf is around 0.8 solar masses. Stars above this mass limit would not be considered red dwarfs, and would likely be brighter and more visible from Earth. However, the Oort cloud is so far away from Earth that even a relatively bright star located there would be difficult to observe from our planet.
However, to your actual question, ChatGPT isn't too off. Assuming that the red dwarf is 10,000 times fainter than the Sun, we wouldn't be able to see it if it's in the farthest parts of the Oort cloud, but in the innermost parts it would be like a fairly bright star in the sky.
The Oort cloud is very, very empty. The planets of the inner solar systems are more packed than objects of any size to speak of in the Oort cloud. You can zip through it with a spacecraft at any angle and the probability that you hit something is zero. "Cloud" not really a good description. But the Oort cloud is extremely big, so it can contain extremely many objects.Unless the Oort cloud can actually obscure some stars.....