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NASA’s Chandra X-ray Observatory has released stunning colour-coded galaxy cluster images that reveal shock waves, cooling gas, and cavities carved by supermassive black holes. By separating X-ray light into different energy bands, astronomers can now visualise hidden cosmic processes that shape the universe’s largest structures and control how galaxies grow over …

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Interstellar Comet 3I/ATLAS Nears Earth on Dec. 19, Offering Rare Insights Into Cosmic Visitors

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December 17, 2025

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Interstellar comet 3I/ATLAS will make its closest approach to Earth on Dec. 19. Observing the comet provides scientists a rare opportunity to study dust and gases from its icy nucleus and learn more about material forming around other stars, expanding understanding of interstellar objects while posing no threat to our planet.

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Europe’s Ariane 6 Rocket Lifts Off With First Galileo Satellites, Boosting Europe’s Navigation Network

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December 17, 2025

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Europe’s Ariane 6 rocket has launched its first Galileo navigation satellites, joining the 26-satellite constellation. The mission strengthens Europe’s GPS capabilities and reduces reliance on foreign rockets.

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NASA’s Parker Solar Probe Observes Solar Wind Making ‘U-Turn’, Shedding Light on Space Weather

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December 17, 2025

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NASA’s Parker Solar Probe captured solar wind reversing toward the sun, revealing how magnetic fields recycle coronal material. This process, seen during a close flyby, helps refine models of space weather and may allow scientists to better predict solar storms that can impact satellites, communications, and power systems across the solar system.

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