AI Revolutionizes Cosmic Discovery: Gemini Models Achieve High Accuracy in Sky Survey Analysis

Edited by: Tetiana Martynovska 17

The year 2025 has marked a pivotal moment in astronomical exploration, characterized by the successful integration of sophisticated artificial intelligence to manage and interpret the massive data streams from modern sky surveys. This technological convergence represents a fundamental shift, transforming raw observational data into structured, novel scientific insights with unprecedented precision.

A key demonstration of this capability was detailed in a study published in Nature Astronomy, which featured the deployment of Google's Gemini large language model. Researchers utilized Gemini to scrutinize extensive night sky archives from major observational projects, including Pan-STARRS, MeerLICHT, and ATLAS. The model exhibited remarkable classification precision, achieving 94.1% accuracy on Pan-STARRS data, 93.4% on MeerLICHT observations, and 91.9% on ATLAS data. This performance underscores the immense potential for advanced AI frameworks to handle the data deluge inherent in large-scale astrophysical surveys.

Furthermore, parallel research confirmed that general-purpose LLMs like Gemini can function as expert assistants with minimal prompting. By using only 15 example images and text instructions, the model achieved approximately 93% accuracy in classifying transient astronomical events, such as supernovae. This accessibility suggests a democratization of complex data analysis, enabling researchers without deep AI programming expertise to contribute meaningfully to discovery.

The integration of machine intelligence into the scientific process was a central topic at the International Workshop on AI + Astronomy, which convened in Hangzhou, China, in October 2025. Discussions focused on how large-scale models are accelerating discoveries across spectral analysis, imaging, and time-domain data interpretation. In related efforts, the multi-institutional SkAI Institute, established in October 2024 with a $20 million grant, advanced its work in June 2025 to engineer specialized AI models capable of processing multi-modal astrophysical data—images, spectra, and time series—at an industrial scale, promising a revolution in astrophysical comprehension ahead of data from surveys like the Vera C. Rubin Observatory.

This new era was further highlighted by the achievement of high school student Matteo Paz in April 2025. Mentored by Davy Kirkpatrick at Caltech, Paz developed an AI algorithm that successfully cataloged 1.5 million previously unidentified celestial objects. Paz’s model sifted through understudied data from NASA's retired NEOWISE infrared telescope, detecting faint infrared fluctuations from variable objects that had been overlooked due to data bulk. This groundbreaking work, which resulted in a peer-reviewed publication in The Astronomical Journal, confirms that innovative application of available tools amplifies the capacity for profound discovery.

Sources

  • Universe Today

  • GitHub - turanbulmus/spacehack: Repository for replicating the results outlined in the paper: Large Language Models Enable Textual Interpretation of Image-Based Astronomical Transient Classifications

  • AI + Astronomy: Models, Data, Discovery (21-October 23, 2025): Overview

  • Unlocking the cosmos with AI | Department of Astronomy | Illinois

  • Exploring Space with AI

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