All Sand on Earth Could Be Made of Star Stuff

All Sand on Earth Could Be Made of Star Stuff
AP Photo/Wayne Parry

Astronomers have long argued that the phrase “we are stardust” is more than poetic language. Now new evidence adds another stanza to this great cosmic verse. 

Dust from silica—a common component of Earth's core, sandy beaches, concrete, glass and even cell phones—has been detected within the remnants of two supernovae in the Milky Way galaxy.

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