Petra, Greek for “stone.”

Ichor, the golden fluid that coursed through the veins of ancient Greek gods.

Petrichor, the smell of rain on dry earth.

What causes it?

“When a raindrop hits a porous surface, it traps tiny air bubbles at the point of contact. As in a glass of champagne, the bubbles then shoot upward, ultimately bursting from the drop in a fizz of aerosols.” —(source, MIT)

 WEATHERCAST // Wanda Coleman