The muscles and correct posture maintain the natural spinal curves. Good posture involves training your body to stand, walk, sit, and lie so that the least amount of strain is placed on the spine during movement or weight-bearing activities (see Posture).
There are roughly 500 billion galaxies in the universe, meaning there is somewhere in the region of 50,000,000,000,000,000,000,000 (5Ã1022) habitable planets. Iâll leave you to do the math on whether one of those 50 sextillion planets has the right conditions for nurturing alien life or not.
And given that there are hundreds of billions of star within our own galaxy, that teaches us there are some 10^23 stars in the Universe, each one with their own unique story, history, planetary systems, and just possibly a chance at life. So on your 25 anniversary, for all that youâve done, thank you, Hubble.