https://happy-team.org/ pt Tue, 13 Oct 2026 20:17:01 GMT vBulletin 60 https://happy-team.org/images/misc/rss.png https://happy-team.org/ https://happy-team.org/showthread.php?79580-ASTRONOMIA-¨-Jupiter-s-Clouds-in-High-Definition-from-Juno&goto=newpost Tue, 13 Oct 2026 13:11:14 GMT ¨

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how complex is Jupiter ?

NASA's Juno mission to Jupiter is finding the Jovian giant to be more complicated than expected

Jupiter's magnetic field has been discovered to be much different from our Earth's simple dipole field, showing several poles embedded in a complicated network more convoluted in the north than the south

further, Juno's radio measurements show that Jupiter's atmosphere shows structure well below the upper cloud deck -- even hundreds of kilometres deep

Jupiter's newfound complexity is evident also in southern clouds, as shown in the texture and color enhanced featured image taken december 2025

there, planet-circling zones and belts that dominate near the equator decay into a complex miasma of continent-sized storm swirls

Juno continues in its looping elliptical orbit, swooping near the huge planet every month and exploring a slightly different sector each time around










































in https://science.nasa.gov/apod/ ]]> ENSINO GERAL belgica https://happy-team.org/showthread.php?79580-ASTRONOMIA-¨-Jupiter-s-Clouds-in-High-Definition-from-Juno https://happy-team.org/showthread.php?79573-ASTRONOMIA-¨-the-Einstein-Cross-Gravitational-Lens&goto=newpost Mon, 12 Oct 2026 10:56:52 GMT ¨

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most galaxies have a single nucleus -- does this galaxy have four ?

the strange answer leads astronomers to conclude that the nucleus of the surrounding galaxy is not even visible in this image

the central cloverleaf is rather light emitted from a background quasar

the gravitational field of the visible foreground galaxy breaks light from this distant quasar into four distinct images

the quasar must be properly aligned behind the center of a massive galaxy for a mirage like this to be evident

the general effect is known as gravitational lensing, and this specific case is known as the Einstein Cross

stranger still, the images of the Einstein Cross vary in relative brightness, enhanced occasionally by the additional gravitational microlensing effect of specific stars in the foreground galaxy











































in https://science.nasa.gov/apod/ ]]> ENSINO GERAL belgica https://happy-team.org/showthread.php?79573-ASTRONOMIA-¨-the-Einstein-Cross-Gravitational-Lens https://happy-team.org/showthread.php?79566-ASTRONOMIA-¨-Full-Moonlight&goto=newpost Sun, 11 Oct 2026 20:09:47 GMT ¨

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the Full Moon is the brightest lunar phase, and the first Full Moon of 2026 occurred on january 3 at 10:03 UTC, while only about 7 hours later planet Earth reachead its 2026 perihelion, the closest point in its elliptical orbit around the Sun, at 17:16 UTC

january's Full Moon was also not far from its own perigee, or closest approach to planet Earth

for this lunation the Moon's perigee was on january 1 at 21:44 UTC



















































in https://science.nasa.gov/apod/ ]]> ENSINO GERAL belgica https://happy-team.org/showthread.php?79566-ASTRONOMIA-¨-Full-Moonlight https://happy-team.org/showthread.php?79533-ASTRONOMIA-¨-Auroral-Corona&goto=newpost Fri, 09 Oct 2026 10:43:52 GMT ¨ Imagem: https://assets.science.nasa.gov/content/dam/science/cds/apod/apod/2026/january/AuroraFireworksstormRoiLevi.jpg cycle 25 solar... ¨






cycle 25 solar maximum made 2025 a great year for aurora borealis (or aurora australis) on planet Earth

and the high level of solar activity should extend into 2026

so, while you're celebrating the arrival of the new year, check out this spectacular auroral display that erupted in starry night skies over Kirkjufell, Iceland

the awesome auroral corona, energetic curtains of light streaming from directly overhead, was witnessed during a strong geomagnetic storm triggered by intense solar activity near the march 2025 equinox

this boreal skyscape captures the evocative display in a 21 frame panoramic mosaic




































in https://science.nasa.gov/apod/ ]]> ENSINO GERAL belgica https://happy-team.org/showthread.php?79533-ASTRONOMIA-¨-Auroral-Corona