Field studies with STELLA instruments offer a unique and accessible way to analyze our environment. These low-cost, handheld tools allow for real-world data collection on a range of subjects, from plant health to air quality. By comparing STELLA measurements to those from established tools or controlled environments, researchers and students can gain valuable insights into the instrument’s capabilities and its effectiveness in various field applications. This approach not only fosters a deeper understanding of remote sensing principles but also opens doors for citizen science initiatives and broader environmental monitoring efforts. Let’s delve into some case studies to see how STELLA instruments are being used in the field.