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YouTubeNASA Space News
Comet SWAN 2025: A Once-in-740,000-Year Sky Event!
Comet SWAN (C/2025 F2) is making a rare appearance in April 2025! With a glowing green coma and long tail, it’s a must-see celestial event. In this video, we explain how to spot it, why it's so rare, and the fascinating science behind its epic journey through the solar system. Don’t miss it! Chapters: 00:00 Introduction 00:51 Discovery ...
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When Comet NEOWISE visited us in 2020. Its closest approach to Earth occurred on July 30, 2020 at a distance of 0.69 AU (103 million km; 64 million mi). | Cosmoknowledge
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