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03/10/2024
ASTRONOMY - Eclipse at Sunrise
2024 October 3
Image Credit & Copyright: Wang Letian (Eyes at Night)
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, crossing land near the southern tip of South America, and ending in the southern Atlantic. The dramatic total annular eclipse phase is known to some as a ring of fire. Still, a partial eclipse of the Sun was experienced over a wide region. Captured at one of its earliest moments, October's eclipsed Sun is seen just above the clouds near sunrise in this snapshot. The partially eclipsed solar disk is close to the maximum eclipse as seen from Mauna Kea Observatory Visitor Center, Island of Hawaii, planet Earth.
SANTé/MEDECINE - 5 Super Aliments qui Diminuent l'Hypertension
02/10/2024
LES NUAGES - DIEUX DU CIEL - Cirrus jaune-orange au coucher du soleil
ASTRONOMY - The Large Magellanic Cloud Galaxy
Image Credit & Copyright: Ireneusz Nowak; Text: Natalia Lewandowska (SUNY Oswego)
Explanation: It is the largest satellite galaxy of our home Milky Way Galaxy. If you live in the south, the Large Magellanic Cloud (LMC) is quite noticeable, spanning about 10 degrees across the night sky, which is 20 times larger than the full moon towards the southern constellation of the dolphinfish (Dorado). Being only about 160,000 light years away, many details of the LMC's structure can be seen, such as its central bar and its single spiral arm. The LMC harbors numerous stellar nurseries where new stars are being born, which appear in pink in the featured image. It is home to the Tarantula Nebula, the currently most active star forming region in the entire Local Group, a small collection of nearby galaxies dominated by the massive Andromeda and Milky Way galaxies. Studies of the LMC and the Small Magellanic Cloud (SMC) by Henrietta Swan Leavitt led to the discovery of the period-luminosity relationship of Cepheid variable stars that are used to measure distances across the nearby universe.
01/10/2024
PLANTES FASCINANTES - La fascinante ostéospermum d'Afrique du Sud
ASTRONOMY - Porphyrion: The Longest Known Black Hole Jets
2024 October 1
Animation Credit: Science Communication Lab for Martijn Oei et al., Caltech
Explanation: How far can black hole jets extend? A new record was found just recently with the discovery of a 23-million light-year long jet pair from a black hole active billions of years ago. Dubbed Porphyrion for a mythological Greek giant, the impressive jets were created by a type of black hole that does not usually create long jets -- one that is busy creating radiation from infalling gas. The featured animated video depicts what it might look like to circle around this powerful black hole system. Porphyrion is shown as a fast stream of energetic particles, and the bright areas are where these particles are impacting surrounding gas. The discovery was made using data from the Keck and Mayall (DESI) optical observatories as well as LOFAR and the Giant Metrewave Radio Telescope. The existence of these jets demonstrates that black holes can affect not only their home galaxies but far out into the surrounding universe.
30/09/2024
LES NUAGES - DIEUX DU CIEL - Nuage lenticulaire sur le mont Cook en Nouvelle-Zélande
INVENTIONS A L'HORIZON 2050 - Les ponts qui s'auto-réparent
METEOROLOGIE - Sant Bartomeu del Grau (Espagne)
Cet orage a été pris en photo dans sa globalité à Sant Bartomeu del Grau en Catalogne, en Espagne. On peut apercevoir le rideau de pluie e...
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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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Extraordinary Solar Halos Image Credit & Copyright : Magnus Edback Explanation: Welcome to the December Solstice, the first...