Are we really made of 'star stuff' and what does that even mean? (video)
Astronomer Carl Sagan once said that humanity is "made of star stuff." In a new video, astrophysicist Suzanna Randall explains what that actually means and where the elements in our body come from.
TroibNews 
Astronomer Carl Sagan once said that humanity is "made of star stuff." In a new video, astrophysicist Suzanna Randall explains what that actually means and where the elements in our body come from.
