I love astronomy since I was a kid. It is amazing how much we've figured out and still doing so everyday. However, I realized this long ago (in my teens) that m

I love astronomy since I was a kid. It is amazing how much we've figured out and still doing so everyday. However, I realized this long ago (in my teens) that much of the stats, eg numbers of stars/planets in the universe, their distances/compositions/ages etc, while calculated, are built on top of multiple instances of approximation/assumption/insufficient data. We know very well how a simple early rounding can lead to widely different end result in a chain of equations. Imagine that in a gigantic situation. In my teen years, I've always wondered why they are not launching Hubble 2.0 3.0 etc every 5 years. Because that's what we need. More state of the art observatories out there in space to gather more data. Without that, we're just increasing the chain of assumptions and approximations.