Nombre total de pages vues
21/07/2025
SANTé/MEDECINE - Cancer du foie : Une corrélation entre cancer du foie et groupe sanguin (4/6)
ASTRONOMY - Cat's Paw Nebula from Webb Space Telescope
2025 July 21
Image Credit: NASA, ESA, CSA, STScI
Explanation: Nebulas are perhaps as famous for being identified with familiar shapes as perhaps cats are for getting into trouble. Still, no known cat could have created the vast Cat's Paw Nebula visible toward the constellation of the Scorpion (Scorpius). At 5,700 light years distant, Cat's Paw is an emission nebula within a larger molecular cloud. Alternatively known as the Bear Claw Nebula and cataloged as NGC 6334, stars nearly ten times the mass of our Sun have been born there in only the past few million years. Pictured here is a recently released image of the Cat's Paw taken in infrared light by the James Webb Space Telescope. This newly detailed view into the nebula helps provide insight for how turbulent molecular clouds turn gas into stars.
20/07/2025
SANTé/MEDECINE - Cancer du foie : Une corrélation entre cancer du foie et groupe sanguin (3/6)
ASTRONOMY - Lunar Nearside
2025 July 20
Explanation: About 1,300 images from the Lunar Reconnaissance Orbiter spacecraft's wide angle camera were used to compose this spectacular view of a familiar face - the lunar nearside. But why is there a lunar nearside? The Moon rotates on its axis and orbits the Earth at the same rate, about once every 28 days. Tidally locked in this configuration, the synchronous rotation always keeps one side, the nearside, facing Earth. As a result, featured in remarkable detail in the full resolution mosaic, the smooth, dark, lunar maria (actually lava-flooded impact basins), and rugged highlands, are well-known to earthbound skygazers. To find your favorite mare or large crater, just follow this link or slide your cursor over the picture. The LRO images used to construct the mosaic were recorded over a two week period in December 2010.
19/07/2025
ASTRONOMY - Messier 6
2025 July 19
Image Credit & Copyright: Xinran Li
Explanation: The sixth object in Charles Messier's famous catalog of things which are not comets, Messier 6 is a galactic or open star cluster. A gathering of 100 stars or so, all around 100 million years young, M6 lies some 1,600 light-years away toward the central Milky Way in the constellation Scorpius. Also cataloged as NGC 6405, the pretty star cluster's outline suggests its popular moniker, the Butterfly Cluster. Surrounded by diffuse reddish emission from the region's hydrogen gas the cluster's mostly hot and therefore blue stars are near the center of this colorful cosmic snapshot. But the brightest cluster member is a cool K-type giant star. Designated BM Scorpii it shines with a yellow-orange hue, seen near the end of one of the butterfly's antennae. This telescopic field of view spans nearly 2 Full Moons on the sky. That's 25 light-years at the estimated distance of Messier 6.
SANTé/MEDECINE - Cancer du foie : les personnes les plus à risque (2/6)
18/07/2025
SANTé/MEDECINE - Cancer du foie : les personnes les plus à risque (1/6)
ASTRONOMY - ISS Meets Saturn
2025 July 18
Image Credit & Copyright: A.J. Smadi
Explanation: This month, bright planet Saturn rises in evening skies, its rings oriented nearly edge-on when viewed from planet Earth. And in the early morning hours on July 6, it posed very briefly with the International Space Station when viewed from a location in Federal Way, Washington, USA. This well-planned image, a stack of video frames, captures their momentary conjunction in the same telescopic field of view. With the ISS in low Earth orbit, space station and gas giant planet were separated by almost 1.4 billion kilometers. Their apparent sizes are comparable but the ISS was much brighter than Saturn and the ringed planet's brightness has been increased for visibility in the stacked image. Precise timing and an exact location were needed to capture the ISS/Saturn conjunction.
17/07/2025
LA TERRE VUE DU CIEL - Chicago vue depuis l'ISS
SANTé/MEDECINE - Détecter le cancer dans les analyses de sang - (7/7) - Conclusion : Un avenir plein d’espoir
Astronomy - CASSINI APPROACHES SATURN
Cassini Approaches Saturn Video Credit & Copyright: Cassini Imaging Team , ISS , JPL , NASA , ESA , S. Van Vuuren et al.; Music: Ada...
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2026 January 1 Auroral Corona Image Credit & Copyright : Roi Levi Explanation: Cycle 25 solar maximum made 2025 a great year for ...


