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Affichage des articles dont le libellé est ASTRONOMY - Timelapse: Aurora SAR and the Milky Way. Afficher tous les articles
Affichage des articles dont le libellé est ASTRONOMY - Timelapse: Aurora SAR and the Milky Way. Afficher tous les articles

26/06/2024

ASTRONOMY - Timelapse: Aurora SAR and the Milky Way

 2024 June 26

Timelapse: Aurora, SAR, and the Milky Way
Video Credit & Copyright: Jeff Dai (TWAN); Music (License): Suite bergamasque by Claude Debussy

Explanation: What's happening in the sky this unusual night? Most striking in the featured 4.5-hour 360-degree panoramic video, perhaps, is the pink and purple aurora. That's because this night, encompassing May 11, was famous for its auroral skies around the world. As the night progresses, auroral bands shimmer, the central band of our Milky Way Galaxy rises, and stars shift as the Earth rotates beneath them. Captured here simultaneously is a rare red band running above the aurora: a SAR arc, seen to change only slightly. The flashing below the horizon is caused by passing cars, while the moving spots in the sky are satellites and airplanes. The featured video was captured from XinjiangChina with four separate cameras.

SANTé/MEDECINE - Grands noms de la médecine - Wilhelm Röntgen

Wilhelm Röntgen est un physicien né le 27 mars 1845 à Lennep, en Allemagne. En 1895, il découvre les rayons X et invente la radiographie ....