How Are We Made of Star Stuff? We Asked a NASA Expert

How are we made of star stuff? Nearly all the elements in your body were forged in ancient stars long before Earth, the Sun or our galaxy even existed. When those stars exploded, they sent their material out into space, scattering elements like carbon, oxygen and iron across the universe. Billions of years later, those same ingredients came together to form everything we know — including you.

A NASA scientist explains how we really are made of star stuff and how telescopes like Hubble and Webb help us trace our cosmic origins.