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14/10/2024
INVENTIONS A L'HORIZON 2050 - Certaines plantes deviendront éternelles
ASTRONOMY - Comet Tsuchinshan-ATLAS Over the Lincoln Memorial
2024 October 14
Credit & Copyright: Brennan Gilmore
Explanation: Go outside at sunset tonight and see a comet! C/2023 A3 (Tsuchinshan–ATLAS) has become visible in the early evening sky in northern locations to the unaided eye. To see the comet, look west through a sky with a low horizon. If the sky is clear and dark enough, you will not even need binoculars -- the faint tail of the comet should be visible just above the horizon for about an hour. Pictured, Comet Tsuchinshan-ATLAS was captured two nights ago over the Lincoln Memorial monument in Washington, DC, USA. With each passing day at sunset, the comet and its changing tail should be higher and higher in the sky, although exactly how bright and how long its tails will be can only be guessed.
13/10/2024
ASTRONOMY - Aurora Timelapse Over Italian Alps
2024 October 13
Video Credit & Copyright: Cristian Bigontina
Explanation: Did you see last night's aurora? This question was relevant around much of the world a few days ago because a powerful auroral storm became visible unusually far from the Earth's poles. The cause was a giant X-class solar flare on Tuesday that launched energetic electrons and protons into the Solar System, connecting to the Earth via our planet's magnetic field. A red glow of these particles striking oxygen atoms high in Earth's atmosphere pervades the frame, while vertical streaks dance. The featured video shows a one-hour timelapse as seen from Cortina d'Ampezzo over Alps Mountain peaks in northern Italy. Stars from our Milky Way Galaxy dot the background while streaks from airplanes and satellites punctuate the foreground. The high recent activity of our Sun is likely to continue to produce picturesque auroras over Earth during the next year or so.
12/10/2024
LES NUAGES DIEUX DU CIEL - Stratocumulus au Nouveau-Mexique
ASTRONOMY - Northern Lights West Virginia
Image Credit & Copyright: Jonathan Eggleston
Explanation: A gravel country lane gently winds through this colorful rural night skyscape. Captured from Monroe County in southern West Virginia on the evening of October 10, the starry sky above is a familiar sight. Shimmering curtains of aurora borealis or northern lights definitely do not make regular appearances here, though. Surprisingly vivid auroral displays were present on that night at very low latitudes around the globe, far from their usual northern and southern high latitude realms. The extensive auroral activity was evidence of a severe geomagnetic storm triggered by the impact of a coronal mass ejection (CME), an immense magnetized cloud of energetic plasma. The CME was launched toward Earth from the active Sun following a powerful X-class solar flare.
11/10/2024
MUSIQUE - Alumni Orchestra - Jacques Offenbach - Ouverture de la Belle Hélène
LES NUAGES DIEUX DU CIEL - Le cumulus congestus : un nuage porteur d'averses
ASTRONOMY - Ring of Fire over Easter Island
2024 October 11
Image Credit & Copyright: Yuri Beletsky (Carnegie Las Campanas Observatory, TWAN)
Explanation: The second solar eclipse of 2024 began in the Pacific. On October 2nd the Moon's shadow swept from west to east, with an annular eclipse visible along a narrow antumbral shadow path tracking mostly over ocean, making its only major landfall near the southern tip of South America, and then ending in the southern Atlantic. The dramatic total annular eclipse phase is known to some as a ring of fire. Also tracking across islands in the southern Pacific, the Moon's antumbral shadow grazed Easter Island allowing denizens to follow all phases of the annular eclipse. Framed by palm tree leaves this clear island view is a stack of two images, one taken with and one taken without a solar filter near the moment of the maximum annular phase. The New Moon's silhouette appears just off center, though still engulfed by the bright disk of the active Sun.
10/10/2024
MUSIQUE - Mikko Franck et l'Orchestre Philarmonique de Radio France - Maurice Ravel - Nuit
SANTé/MEDECINE - ALIMENTATION - NUTRIMENTS - Les protéines : un source immédiate d'énergie
VILLES BIONIQUES DU FUTUR - Les galets de Shenzen : un avant-goût de la cité du futur
Avec les six tours « Asian cairns » de la ville chinoise de Shenzhen, l' architecte Vincent Callebaut propose un concept « biomimétiqu...
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2021 May 11 Lightning and Orion Beyond Uluru Image Credit & Copyright: Park Liu Explanation: What's happening behind Uluru? A Un...
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The Witch Head Nebula Image Credit & Copyright: Digitized Sky Survey (POSS II); Processing: Utkarsh Mishra Explanation: ...