There are a lot of speculations about how big the universe is. One thing is for sure, the universe is surely vast. According to some reports, the universe may be about 93 billion light years if it would be measured in diameter. It will be nearly impossible to explore every inch of the atmosphere that way.
Some say that over the past years, the universe has expanded more and more. There are definitely more things that can be seen. There are more things that will be discovered as the items that people use also become more advanced than before. Who knows, there may be life beyond the solar system after all.
