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Affichage des articles dont le libellé est ASTRONOMY - ELT and the Milky Way. Afficher tous les articles
Affichage des articles dont le libellé est ASTRONOMY - ELT and the Milky Way. Afficher tous les articles

16/03/2024

ASTRONOMY - ELT and the Milky Way

 2024 March 16

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ELT and the Milky Way
Image Credit & License: European Southern Observatory - Courtesy: Jens Scheidtmann

Explanation: The southern winter Milky Way sprawls across this night skyscape. Looking due south, the webcam view was recorded near local midnight on March 11 in dry, dark skies over the central Chilean Atacama desert. Seen below the graceful arc of diffuse starlight are satellite galaxies of the mighty Milky Way, also known as the Large and Small Magellanic clouds. In the foreground is the site of the European Southern Observatory's 40-metre-class Extremely Large Telescope (ELT). Under construction at the 3000 metre summit of Cerro Armazones, the ELT is on track to become planet Earth's biggest Eye on the Sky.

La grande épopée des ballons dirigeables - 2010 : le ballon captif de surveillance 101230-N-0020T-144

Ces aérostats sont apparus dès la fin du XIXe siècle. Dès leurs débuts, ils ont été utilisés à des fins militaires permettant l'observat...