As far as we can tell, there's no limit to how far it goes on; only a limit to how far we can see. Could the Universe truly be infinite?
13.8 billion years ago, what we know as our Universe began with the hot Big Bang. The Universe was filled with matter, antimatter, radiation, and existed in an ultra-hot, ultra-dense, but expanding-and-cooling state.
Key Takeaways
- The limits to which we can observe the Universe are set by three things: the rate of expansion, the time since the Big Bang, and the speed of light.
- But beyond our visibility limit, there ought to be more Universe out there, and no one knows how far it goes on for.
- Is it finite or is it infinite? Although we don't know for certain, many have their suspicions, and scientists are working to find out as much as possible.
