Comet 3I/ATLAS Glows Green from Close Solar Encounter
Comet 3I/ATLAS is captivating astronomers and enthusiasts alike with its unique characteristics and stunning visuals. Discovered in 2025, this comet is among the oldest ever observed and one of three interstellar objects documented. Recently, new images from the Gemini North telescope reveal distinct changes following the comet’s close approach to the Sun.
Key Observations of Comet 3I/ATLAS
- Date of Image Capture: November 26, 2025
- Telescope: Gemini North, located on Maunakea, Hawaii
- Significance: Observations track its transformation after nearing the Sun
The Gemini North telescope employed the Gemini Multi-Object Spectrograph for these observations, showing how Comet 3I/ATLAS altered due to solar proximity. As comets consist of frozen ice, a close encounter with a star heats them, causing gases to escape into space.
Visual Transformation: From Red to Green
Comet 3I/ATLAS initially exhibited a reddish hue in images taken by the Gemini South telescope in the Chilean Andes. However, recent images reveal a striking green glow attributed to gases, such as diatomic carbon, emitting light as they evaporate when heated.
Continued Monitoring and Future Observations
The journey of Comet 3I/ATLAS through our Solar System is not over. Scientists plan to keep monitoring the comet as it exits our System. Post-encounter, it is expected to cool, but some comets may experience a delayed response, leading to potential gas outbursts.
The Importance of Public Engagement
Scientists like Bryce Bolin, a research leader at Eureka Scientific, emphasize the educational aspect of these observations. Sharing this experience enhances public understanding of astronomical processes and promotes transparency in scientific research.
As Comet 3I/ATLAS continues its remarkable journey, it stands as a testament to the wonders of our universe, inviting ongoing study and fascination from all corners of the globe.
