|
At least to me "nebulosity" doesn't have a naughty character. However "dark energy" seems to suggest something real bad that we shouldn't be putting energy into.
For the longest time it seemed to many of us that we had a pretty decent idea about the mass of the universe. Now we are back to a time of confusion since it now appears that all the visible mass of all the stars and galaxies and dust and clouds is only about 4% of the total mass of the universe, and the "dark mass" is perhaps another 22% or so; and the rest is apparently some kind of yet unknown "dark energy". It's going to be the longest time before we figure this out but at least we can have fun doing it.
|