NASA & GLOBE Connect People, Land, and Space: Building a Global Community of Citizen Scientists

In an era where environmental challenges demand global cooperation, NASA’s GLOBE program stands as a beacon of hope, connecting millions of people worldwide in the shared mission of understanding and protecting our planet. As we move deeper into 2025, the program continues to evolve, offering new and innovative ways for citizen scientists of all ages to contribute meaningful data that directly supports NASA’s Earth science research.

The Power of Citizen Science

The GLOBE program, which celebrated its 30th anniversary in 2025, represents one of the most successful examples of how citizen science can drive real environmental understanding[4]. Since its establishment in 1994 and worldwide launch in 1995, GLOBE has grown into a remarkable international network spanning more than 125 participating countries[1]. What makes this program truly exceptional is its scale and impact: over the past three decades, 1.5 million students and 58,000 trained teachers from 112 countries have participated, collectively contributing more than 100 million measurements to the GLOBE database[3].

These aren’t casual observations—they represent meaningful, standardized, research-quality datasets that scientists use to advance our understanding of Earth systems. From atmospheric conditions to soil moisture, from land cover changes to biological phenology, GLOBE volunteers provide the ground-truth observations that complement and validate satellite data collected from space[3].

Connecting Observations to Satellite Data

One of the most exciting developments in GLOBE’s recent evolution is the enhanced connection between volunteer observations and NASA’s satellite imagery. The program has implemented a sophisticated system that sends volunteers satellite comparison emails, creating a direct link between what people observe on the ground and what NASA instruments see from orbit[2].

When volunteers submit cloud observations, they receive emails comparing their data with satellite measurements from the same location. This feedback mechanism serves a crucial purpose—it shows participants that their work matters and that they’re contributing to real science. As Tina Rogerson, the programmer at NASA Langley Research Center who manages these satellite comparison emails, explains, “Feedback from NASA is huge. It’s the hook. It ties NASA science into what they saw when they did the observation.”[2]

Recently, GLOBE expanded this system to include land cover observations[2]. Now volunteers receive satellite comparison emails for both cloud and land cover data, allowing them to see how their ground-based measurements align with Landsat and Sentinel-2 satellite imagery. When participants receive these emails, they access a comparison table showing their observation alongside satellite-based assessments of land cover at that location, topped with the most recent satellite images of their observation site[2].

Broadening Access and Impact

Recognizing the program’s immense potential, NASA has made significant investments in GLOBE’s future. In 2025, the CUNY Graduate Center received an $11.1 million, five-year award to serve as the GLOBE Implementation Office, working alongside the State University of New York at Fredonia and the Institute for Global Environmental Strategies[1]. This partnership represents a major commitment to expanding GLOBE’s reach and impact.

The CUNY-GLOBE partnership focuses on six key objectives designed to strengthen the program[1]. These include supporting robust scientific outcomes through careful attention to data quality, strengthening GLOBE’s connection to NASA Earth science, expanding partnerships with humanitarian organizations and the broader science community, broadening access through strategic partnerships and emphasis on diversity and equity, increasing GLOBE’s role in STEM workforce development, and integrating advanced participatory science infrastructure[1].

Real-World Applications and Community Benefits

What distinguishes GLOBE from other citizen science initiatives is its commitment to demonstrating how satellite data directly benefits communities. GLOBE volunteers don’t just collect data in isolation—they learn how their observations of land cover and atmospheric conditions connect to the broader, space-based perspective of Earth’s changing systems[2]. This holistic understanding fosters deeper environmental literacy and scientific thinking.

The program receives support from multiple federal agencies, including NASA, NOAA, and the National Science Foundation, ensuring sustainable funding and institutional backing[3]. This multi-agency approach reflects the recognition that understanding Earth’s systems requires coordinated, long-term observation efforts.

The Future of Global Collaboration

As we look toward the future, GLOBE’s evolution demonstrates how technology and human curiosity can combine to advance environmental science. The program’s emphasis on diversity, equity, and inclusion ensures that voices from around the world contribute to our understanding of Earth’s environment[1]. Whether through students in rural communities, urban educators, or professional scientists, GLOBE creates pathways for meaningful participation in science.

The recent expansion of satellite comparison capabilities for land cover observations is particularly significant. By bringing “real science right into your world,” as Rogerson notes, GLOBE motivates continued participation and demonstrates the tangible value of citizen science[2].

Conclusion

NASA and GLOBE’s partnership exemplifies how connecting people, land, and space creates powerful synergies for environmental understanding. By enabling volunteers to see their ground-based observations validated against satellite data, the program transforms individual measurements into contributions to a global scientific endeavor. As environmental challenges intensify, this network of millions of citizen scientists worldwide becomes increasingly vital—proving that protecting our planet is truly a collective responsibility.

Original source: NASA – Breaking News – NASA & GLOBE Connect People, Land, and Space