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08/05/2026
Santé/Médecine - LES SYMPTOMES DE LA FIBROMYALGIE: 9. Un état dépressif - (11/12)
07/05/2026
Astronomie - ÉTOILE FILANTE DANS LE CIEL JAPONAIS
Santé/Médecine - LES SYMPTOMES DE LA FIBROMYALGIE: 8. LE SYNDROME DE L'INTESTIN IRRITABLE (SII ) - (10/12)
06/05/2026
Astronomy - THE RETROGRADE DANCE OF SATURN AND NEPTUNE
2026 May 6
Image Credit & Copyright: Tunç Tezel (TWAN)
Text: Keighley Rockcliffe (NASA GSFC, UMBC CSST, CRESST II)
Explanation: What does it mean for Saturn and Neptune to be in retrograde? Featured is a composite of images taken over 34 nights from May 2025 to February 2026 tracing Saturn (brighter, foreground) and Neptune (dimmer, background). Over that time, the two planets exhibited retrograde motion, meaning they appeared to move backward in the sky. This apparent backwards motion occurs when Earth overtakes the slower outer planets as they orbit the Sun. Imagine the Solar System is a running track. Earth "runs" faster along the inside of the track compared to the outer planets. As Earth approaches, aligns, and then "laps" the outer planets, they change position from ahead to behind from the Earth's perspective. This perspective shift is what causes the outer planets to change position in the night sky. An animation corresponding to today’s image shows Saturn and Neptune’s months-long dance across the northern night sky. Saturn stepped from the Pisces constellation into Aquarius and back again while Neptune remained in Pisces. This is the closest Saturn and Neptune have been in the sky since their last conjunction in 1989.
05/05/2026
Astronomy - ORION OVER MOUNT TEIDE
2026 May 5
Image Credit & Copyright: Marcin Rosadziński
Explanation: Orion is rarely seen like this. To achieve this majestic vista, you need a camera capable of taking such long duration exposures that faint features in the night sky become revealed. Iconic nebulas that appear include the Orion Nebula, the Flame Nebula, and Barnard's Loop. For contrast, it also helps to have a volcano on the foreground, in this case the Teide volcano on Tenerife on the Canary Islands of Spain. But if you want your Teide volcano snow-covered, you also need good timing -- because that only happens, typically, for a few days each year. Good timing also includes waiting for Orion to appear just behind Teide, which occurred late last year after sunset. The featured image is the result of a series of images taken consecutively with the same camera from the same location.
Santé/Médecine - LES SYMPTOMES DE LA FIBROMYALGIE: 7. DES MAUX DE TÊTE (9/12)
04/05/2026
Astronomy - SUPERPLUMES INSIDE EARTH
Image Credit & License: Sanne Cottaar via Wikimedia Commons
Explanation: Why are there huge, unusual masses inside the Earth? No one is sure. By noting how earthquakes rumble through our planet's interior, humanity has discovered two deep structures that appear to have unusual temperatures and/or chemical compositions. One hypothesis holds that the superplumes are sunken debris left over from the Earth-shattering collision that created Earth's Moon about 4.5 billion years ago. A competing hypothesis is that they are graveyards for old tectonic plates that slowly slid under each other over the past few billion years. No matter their origin, the superplumes are thought to affect Earth’s surface volcanism, possibly creating, for example, island chains such as Hawaii. Also known as large low-shear-velocity provinces (LLSVPs), Earth's superplumes are visualized in the featured animation.
03/05/2026
Astronomy - TRIFID PILLARS AND JETS
2026 May 3
Image Credit: NASA, ESA, STScI; Processing: J. DePasquale (STScI)
Explanation: Dust pillars are like interstellar mountains. They survive because they are more dense than their surroundings, but they are slowly being eroded away by a hostile environment. Visible in the featured picture by the Hubble Space Telescope is the end of a huge gas and dust pillar in the Trifid Nebula (M20), punctuated by a smaller pillar pointing up and an unusual jet pointing to the upper left. Many of the bright dots are newly formed stars. A star near the small pillar's end is slowly being stripped of its accreting gas by radiation from a tremendously brighter star situated off the top of the image. The jet extends nearly a light-year and would not be visible without external illumination. As gas and dust evaporate from the pillars, the hidden stellar source of this jet will likely be uncovered, possibly over the next 20,000 years.
Santé/Médecine - LES SYMPTOMES DE LA FIBROMYALGIE: 6. DES TROUBLES DE LA MEMOIRE ET DE L'ATTENTION (8/12)
02/05/2026
Astronomy - SEEING TITAN
2026 May 2
Image Credit: VIMS Team, Univ. Arizona, U. Nantes, ESA, NASA
Explanation: Shrouded in a thick atmosphere, the surface of Saturn's largest moon, Titan, is really hard to see. Small particles suspended in Titan's upper atmosphere cause an almost impenetrable haze, strongly scattering light at visible wavelengths and hiding surface features from prying eyes. Still, Titan's surface is better imaged at infrared wavelengths, where scattering is weaker and atmospheric absorption is reduced. Arrayed around this visible light image (center) of Titan are some of the clearest global infrared views of the tantalizing moon so far. In false color, the six panels present a consistent processing of 13 years of infrared image data from the Visual and Infrared Mapping Spectrometer (VIMS) on board the Cassini spacecraft orbiting Saturn from 2004 to 2017. They offer a stunning comparison with Cassini's visible light view. NASA's revolutionary rotorcraft mission to Titan's surface is due to launch no earlier than July, 2028.
Astronomy - COMET R3 PanSTARRS BEFORE RIGEL
2026 May 8 Comet R3 PanSTARRS Before Rigel Image Credit & Copyright: Jakub Kuřák & Martin Mašek ( FZU of the Czech Academy of S...
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Imaginez un monde où le cancer n’est plus une sentence, mais une simple étape à franchir. Grâce à une découverte révolutionnaire, ce rêve es...
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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 ...



