Nanosatellites, which are much smaller and lighter than traditional satellites, are helping scientists observe Earth more frequently and with greater detail. These compact satellites can be developed and launched more quickly, making it possible to deploy them in groups, or constellations, to monitor the same area multiple times a day. This increased frequency of observation is especially useful for tracking fast-changing environmental events like wildfires, storm systems, methane leaks, and flood movements, which can evolve rapidly and are difficult to capture with less frequent data collection. Traditional satellites often observe a specific region at the same local time each day, limiting the ability to capture changes that happen at different times. By using multiple nanosatellites, scientists can gather data at various times, offering a more complete picture of events as they unfold. This approach is not only more flexible but also complements the accuracy of measurements, allowing researchers to better understand the dynamics of environmental and climate-related phenomena. One example of this new technology in action is the UVSQ-SAT NG, launched in March 2025 by the Latmos research laboratory. This satellite is designed to test miniaturized instruments and evaluate their performance in space. By doing so, it helps scientists and engineers prepare for the next generation of space systems that will be capable of more frequent and detailed Earth observations. These tests are crucial for identifying which technologies will best support future distributed satellite networks. The combination of miniaturized technology, flexible satellite constellations, and high revisit rates is paving the way for a more dynamic approach to Earth observation. This allows scientists to better track and understand environmental and climate changes over time, providing more accurate data for research, policy-making, and disaster response efforts.