The Students Who Found the Oldest Star: Top Photos

Two undergrads walked into an observatory on their first night and found the oldest star anyone has ever seen.

Ha Do (left) and Natalie Orrantia (right) at the observatory console at Las Campanas Observatory, smiling at the moment they discover the oldest known star
Ha Do and Natalie Orrantia at the Las Campanas console the night of the discovery, March 21, 2025. The screens behind them show the spectral data for SDSS J0715-7334. Photo: Ha Do / University of Chicago. © Ha Do / University of Chicago, CC BY 4.0, via EurekAlert

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