올림픽과 상관 없는 사람이? 설마 했는데, 참관 리스트에 할 말이 #뉴스다 / JTBC News - JTBC News



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NASA’s Laser Communication Sets Deep Space Record, Paving Way for Faster Data Transmission in Future Missions - The Daily Galaxy --Great Discoveries Channel
Watch The Smallest Water Droplet Ever Seen Grow, Molecule by Molecule - ScienceAlert

Mysterious craters found in the bottom of Lake Michigan - Earth.com
Large radio bubble detected in galaxy NGC 4217 - Phys.org