When the sun dies, galaxies will become glowing "bubbles" and disappear thousands of years from time.

Scientists said in the journal Nature Astronomy that when the sun dies, our galaxy will become a huge glowing "bubble" of dust and gas that will disappear after thousands of years, Russian satellite news agency reported.
said Albert, a researcher at the University of Manchester in the UK, "Observational data suggest that multiple planets about the size of the sun can produce bright nebulae, which in theory is not possible."
it needs a planet twice as big.
we explained that this is possible for the planet of the solar system, resolving the 25-year-old dispute.
" he explained that in about 450 million to 5 billion years, the sun's hydrocarbons, "nuclear fuel" would run out, and he would start to burn helium, causing its core to be super-hot, the shell to expand, devour Venus and Mercury, and turn the planet into a lifeless glowing sphere.
finally, the sun will get rid of all the outer gas and become a white dwarf, a hot star that will continue to glow on the heat of the former core. The light emitted by the
planet will warm and illuminate the surrounding gas clouds, turning them into bright spots beneath the night sky of other worlds, and the solar system will become a planetary nebula.
Source: China News Network.