Greta is a research geologist who delves into the stories hidden in rocks and strata to better understand the Earth’s history and future. Her days are filled with fieldwork, lab analyses, and piecing together the puzzles of tectonic shifts and ancient landscapes. Despite the rigorous nature of her work, Greta has a whimsical habit: she carries a tiny, well-worn hammer charm on her keychain, a miniature version of her favorite field tool. She says it’s her “good luck talisman” and insists it’s been with her on every significant discovery—a small, endearing link between her curiosity and the ground beneath her feet.