Witryna10 lip 2024 · There are around 10^11 to 10^12 galaxies in the observable universe, and each galaxy contains between 10^11 and 10^12 stars, according to the European Space Agency. This gives us somewhere between ... Witryna25 lut 2024 · The current width of the observable universe is about 90 billion light-years. And presumably, beyond that boundary, there's a bunch of other random stars and galaxies. But past that? It's... This allowed researchers to compute how fast the universe expanded in the past. … The universe has all sorts of deformations in space-time where it varies from the … Galaxies are glittering cities, massive metropolises full of stars, dust, gas, … Space.com is your source for the latest astronomy news and space discoveries, … Read the latest spaceflight news about manned and unmanned space-travel, … Seeking answers about space? Join the Space community: the premier source of … The best star projectors make excellent gifts for kids and adults — project accurate … Space Showcase ... JW Showcase
What is beyond the edge of the universe? - Quora
Witryna8 wrz 2024 · If you use that then the answer is a sort of yes: it exists in the thick present, but also in the future. As we "move" forward into time, our past light cone sections through this region and thus things become observable, however due to the Universe's expansion there are regions that will never be. Share. Cite. Witryna10 lut 2024 · What we're left with is an observable Universe that's huge: 46 billion light years in radius, containing some 10^12 galaxies, 10^24 stars, 10^80 atoms and nearly 10^90 photons. The total amount... 5e2800分什么段位
Ask Ethan: How Can We See 46.1 Billion Light-Years Away In A ... - Forbes
WitrynaThat would seem to indicate that the observable universe is 13.8 billion light-years in any direction from Earth and 27.6 billion light-years in diameter. However, according … WitrynaIn visible light, the farthest we can see comes from the cosmic microwave background, a time 13.8 billion years ago when the universe was opaque like thick fog. Some neutrinos and gravitational waves … Witryna3 sty 2015 · The simple answer is that we cannot know that there is anything outside the observable universe. The best we can say is that it seems likely. We approximate … 5e2800分什么水平