Carl Sagan said “We are made of star stuff”, and look at these Paramecium full of stardust. . The shining bits you see are mostly calcium crystals, and the elemental calcium that makes up those crystals formed billions of years ago inside giant stars, then the stars collapsed on themselves and exploded. The explosion scattered the calcium and many other elements around the universe and formed many others, some of it travelled to this part of the universe and 5 billion years ago it joined the clo

Carl Sagan said “We are made of star stuff”, and look at this single-celled organism full of stardust. . The shining bits you see in the first clip are mostly calcium crystals, and the elemental calcium that makes up those crystals formed inside giant stars billions of years ago, then the star collapsed on itself and exploded, and the explosion scattered the calcium and many other elements around the universe and formed many others, some of it travelled to this part of the universe and 5 billion