Can a mobile game help save the world's coral reefs?

Space · Published 25 October 2026 Swipe more like this →

In short: NASA is transforming ocean conservation into an interactive video game. By inviting players to paint and classify 3D images of coral, they are crowdsourcing the data needed to train a supercomputer to monitor global reef health and biodiversity, helping researchers understand how these underwater worlds are changing.

The challenge of monitoring coral reefs lies in the water itself. Traditional satellite and airborne remote sensing often struggle with refractive distortion from ocean waves and optical attenuation. Current global assessments based on kilometer-scale satellite data can suffer from segmentation errors greater than 40%, making it difficult for scientists to accurately track species breakdown or living cover at smaller, more critical scales.

NASA created NeMO-Net to address this, which serves as the initial neural multi-modal training and observation network designed for evaluating coral reefs worldwide. The project uses a deep convolutional neural network (CNN) that leverages data fusion. It combines high-resolution, millimeter-scale 3D images captured by the NASA FluidCam instrument—which uses fluid lensing to remove wave distortion—with lower-resolution hyperspectral airborne and satellite data. This approach can reduce classification errors by up to 80% over regional scales.

NeMO-Net functions as an interactive active learning platform. It allows citizen scientists to explore a virtual research vessel and analyze actual seafloor images. Players classify corals and rate each other's work, creating a massive dataset that trains the system. This collaborative effort helps researchers understand how reefs are changing due to ocean acidification and rising sea surface temperatures, ultimately providing the tools needed to protect these underwater ecosystems.

The project has seen significant engagement, garnering over 35,000 downloads and 56,000 classifications within its first month of release. By turning complex data labeling into a gamified experience, NASA is bridging the gap between high-level machine learning and public participation to map Earth's oceans at unprecedented spatial and temporal scales.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• Mapping the health of the world's coral reefs from above
• How computer vision is mapping the hidden depths of the Great Barrier Reef
• The fragile architecture of our oceans is facing a catastrophic collapse
• Can underwater robots use soundscapes to diagnose the health of coral reefs?
• Coral reefs are not just scenery; they are vital global infrastructure.
• The high-altitude sentinels watching over half of our globe
• Humanity's holiday glow is now visible from orbit
• The final chapter of a fifty-year era in Earth observation
• The cosmic engine that accelerates particles to near-light speeds
• How a school-bus-sized satellite survives the journey to 22,000 miles above Earth
• The satellite that taught us how to see through clouds
• Predicting the path of destruction with orbital precision

More in Space · Latest · A–Z · All topics