Impossible Sensing

Impossible Sensing is a US-based space sensing technology company headquartered in St. Louis, Missouri, developing miniaturized, high-performance spectrometers, remote sensing instruments, and optical sensors for smallsats, CubeSats, and planetary exploration missions. The company's compact spectrometer instruments are designed to detect atmospheric gases (methane, CO2, water vapor), map planetary surface mineralogy, and characterize asteroid and lunar compositions — enabling scientific missions that previously required large, expensive spacecraft to be conducted on cost-effective small satellites. Impossible Sensing develops instruments for NASA science missions and commercial Earth observation, contributing to the miniaturization of space science payloads.