AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
If the sun turned into a black hole4/28/2023 If there was a way to survive this, all the people would retreat underground for warmth and light (I don't know whether magma would be sufficient for this, correct me), and have to rely on radically different food sources. The sun is our only source of natural light, apart from magma if you go deep enough (maybe?). Unless you have enough artificial lighting (which even modern-day Earth lacks), everyone would just go blind or have to rely on torches / candles etc. U/Reedstilt points out the factor of crops not growing very well, but wouldn't the first concern be the freeze that would come after the sun is switched off? Greenhouse effect could protect you for a while (plus the 8 minutes of sunlight you'll get after the event) but eventually you'll have to search for an alternate source of heat.Īlso, when the sun dies, another major concern would be a source of light. These are just opinions and conclusions I came to with logic - knowing all the relevant facts could greatly change the answer.) (Disclaimer: I'm not an expert in the field nor have I researched this scenario particularly well so take what I say with a grain of salt. As this happens the world would slowly be cooling but not as quickly as with a black hole. The light changes to a harsh blue light but over a suitable timescale for your story as it cools it becomes white, yellow, orange and finally red. However, you could brush aside the exact details and say that the Sun god shrinks to the size of star in the sky. In astronomical terms when a white dwarf is born they are extremely hot and the resulting illumination (including lots of ultraviolet and x-rays) would render Earth uninhabitable. The sun would shrink to about the same size as Earth so it would only appear as a bright star in the sky. This is a star that no longer burns fuel but is instead slowly (on astronomical timescales) cooling. Perhaps an alternative is to convert the sun god into a white dwarf instead. Earth would go dark then everything would freeze and die. In the absence of a surrounding accretion disc it wouldn't even be an interesting sight in the sky unfortunately. But this particular star, located in the galaxy NGC 6946, was bright enough to see from 22 million light years away and faded in an instant, suggesting a massive stellar-mass black hole was the driving culprit.If Earth's sun suddenly changed into a black hole it would shrink from a radius of just under 700,000 km to around 3 km. Only a few of these so called “massive fails” ( yes, that’s what they’re calling them) have been spotted, so astronomers are cautious about the results. Rather than exploding, the gas collapses directly into the core of the star. This can happen when the core collapse of the star is especially massive. While some supernova events are explosive and leave clouds of debris for thousands of years (aka nebula) like SN 1054, the star in question seems to have begun to explode and then had all its gas sucked right back into the black hole at the center. And now, Hubble seems to have seen a supernova blink out - suggesting it captured the moment when a black hole took over. What’s left is mostly neutron stars or black holes. When a massive star expends its fuel, its core collapses into a dense object and sends the rest of its gas outward in an event called a supernova.
0 Comments
Read More
Leave a Reply. |