After decades of failures and misunderstandings, scientists have solved a cosmic riddle — what happens to the tons of dust particles that hit the Earth every day but seldom if ever get discovered in the places that humans know best, like buildings and parking lots, sidewalks and park benches.
The answer? Nothing. Look harder. The tiny flecks are everywhere.
"Stardust, Everywhere You Look" is from the March 13, 2017 Science section of The New York Times. It was written by William J. Broad and narrated by Barbara Benjamin-Creel.