Alexandre Henrique Lopes Porto
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Alexandre Henrique Lopes Porto
@xandaolp.bsky.social
64 followers 60 following 2K posts
Analista de Sistemas que gosta de séries. Gosta também de astronomia e tecnologia. No momento fazendo pós-doutorado no LNCC.
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Jupiter's Clouds in High Definition from Juno
Image Credit: NASA/JPL-Caltech/SwRI/MSSS; Processing & License: Thomas Thomopoulos
apod.nasa.gov/apod/ap26010...
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 kilometers deep. Jupiter's newfound complexity is evident also in southern clouds, as shown in the texture and color enhanced featured image taken last month. 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.
January 6, 2026 at 8:05 AM
Reposted by Alexandre Henrique Lopes Porto
ridingrobots.bsky.social
From NASA, the monthly "What's Up" stargazing video guide.

What’s Up for January? Jupiter is at its biggest and brightest, the Moon and Saturn pair up, and the Beehive Cluster buzzes into view. 🔭 science.nasa.gov/solar-system...
A cliff of layered sandstone rock under a night sky, standing above a river. The river reflects the light of Jupiter, which appears as a bright star. Image: NASA/Bill Dunford
January 5, 2026 at 11:33 PM
xandaolp.bsky.social
Cat Shows Up in a Garden and Sticks Around Until Kind Person Notices Him and Changes His Life
www.lovemeow.com/cat-garden-n...
Cat Shows Up in a Garden and Sticks Around Until Kind Person Notices Him and Changes His Life
A cat showed up in a garden and stuck around until a kind person noticed him, changing his life forever. KenzoChatonsOrphelinsMontrealA white cat wandered into the garde...
www.lovemeow.com
January 6, 2026 at 7:48 AM
xandaolp.bsky.social
Cat Tries to Enter a Work Office, Within 48 Hours, She Has Three Kittens by Her Side
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Cat Tries to Enter a Work Office, Within 48 Hours, She Has Three Kittens by Her Side
A cat tried to come into an office at a workplace. Within 48 hours, she had three tiny kittens by her side. Muffin and her kittensHomeward Bound Cat AdoptionsAbout two a...
www.lovemeow.com
January 5, 2026 at 7:42 AM
xandaolp.bsky.social
The Red Rectangle Nebula from Hubble
Image Credit: NASA, ESA, Hubble; Processing & License: Judy Schmidt
apod.nasa.gov/apod/ap26010...
How was the unusual Red Rectangle nebula created? At the nebula's center is an aging binary star system that surely powers the nebula but does not, as yet, explain its colors. The unusual shape of the Red Rectangle is likely due to a thick dust torus which pinches the otherwise spherical outflow into tip-touching cone shapes. Because we view the torus edge-on, the boundary edges of the cone shapes seem to form an X. The distinct rungs suggest the outflow occurs in fits and starts. The unusual colors of the nebula are less well understood, however, and speculation holds that they are partly provided by hydrocarbon molecules that may actually be building blocks for organic life. The Red Rectangle nebula lies about 2,300 light years away towards the constellation of the Unicorn (Monoceros). The nebula is shown here in great detail as a reprocessed image from Hubble Space Telescope.
January 5, 2026 at 7:30 AM
xandaolp.bsky.social
Substituto do concreto tem emissão negativa de carbono
Crédito da imagem: Worcester Polytechnic Institute
www.inovacaotecnologica.com.br/noticias/not... via @inovacaotecnologica.com.br
Material estrutural enzimático, um material de construção forte, durável e reciclável.
January 5, 2026 at 7:12 AM
xandaolp.bsky.social
Robôs aquáticos inspirados em folhas farão monitoramento ambiental
Créditos da imagem: Yexi Zhou et al.
www.inovacaotecnologica.com.br/noticias/not... via @inovacaotecnologica.com.br
O projeto, ilustrado na figura, permite propulsão precisa, camuflagem e coleta de informações ambientais em tempo real, com potencial para monitoramento externo e robótica aquática de longa duração.
January 5, 2026 at 7:02 AM
xandaolp.bsky.social
They Went to Help a Stray Kitten in the Cold But Found 2 Cats Instead, They Never Gave Up on the Little One
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They Went to Help a Stray Kitten in the Cold But Found 2 Cats Instead, They Never Gave Up on the Little One
They went to help a stray kitten in the bitter cold but found two cats instead. They never gave up on the little one. BennyWhiskers-a-GoGoAs freezing temperatures set in...
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January 4, 2026 at 8:13 AM
xandaolp.bsky.social
The Einstein Cross Gravitational Lens
Image Credit & License: NSF, NOIRLab, AURA, WIYN; Processing: J. Rhoads (Arizona State U.) et al.
apod.nasa.gov/apod/ap26010...
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.
January 4, 2026 at 7:45 AM
xandaolp.bsky.social
Full Moonlight
Image Credit & Copyright: Zhengjie Wu and Jeff Dai (TWAN)
apod.nasa.gov/apod/ap26010...
The Full Moon is the brightest lunar phase, and tonight you can stand in the light of the first Full Moon of 2026. In fact, the Moon's full phase occurs on January 3 at 10:03 UTC, while only about 7 hours later planet Earth reaches 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. You can also spot planet Jupiter, near its brightest for 2026 and close on the sky to the Full Moon tonight. But while you're out skygazing don't forget to look for rare, bright fireballs from the Quadrantid meteor shower.
January 3, 2026 at 8:24 AM
Reposted by Alexandre Henrique Lopes Porto
xipteras.org
NGC 2403 is a spiral #galaxies located in the northern constellation Camelopardalis, approximately 8 million light-years from our planet. With an apparent magnitude of ... (read) x.com/xipteras/sta... #WeWereHere
January 2, 2026 at 4:34 PM
xandaolp.bsky.social
Cat Came to Shelter with 7 Kittens, Months Later She's Offering Same Love She Received to Everyone She Meets
www.lovemeow.com/cat-shelter-...
Cat Came to Shelter with 7 Kittens, Months Later She's Offering Same Love She Received to Everyone She Meets
A cat arrived at a shelter with seven kittens. Months later, she's helping people, offering the same love she received to everyone she meets. Lori WhiteA few months ago,...
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January 2, 2026 at 7:52 AM
xandaolp.bsky.social
NanoSail-D2
Image Credit & Copyright: Ralf Vandebergh
apod.nasa.gov/apod/ap26010...
In 2011, on January 20, NASA's NanoSail-D2 unfurled a very thin and very reflective 10 square meter sail becoming the first solar sail spacecraft in low Earth orbit. Often considered the stuff of science fiction, sailing through space was suggested 400 years ago by astronomer Johannes Kepler, who had observed comet tails blown by the solar wind. But modern solar sail spacecraft designs, like NanoSail-D2, Japan's interplanetary spacecraft IKAROS, or the Planetary Society's Lightsail A, rely on the small but continuous pressure from sunlight itself for thrust. Glinting in the sunlight as it circled planet Earth, NanoSail-D2's solar sail was periodically bright and visible to the eye. These remarkably detailed images were captured by manually tracking the orbiting solar sail spacecraft with a small telescope.
January 2, 2026 at 7:45 AM
xandaolp.bsky.social
IA feita com luz faz todos os cálculos de uma vez só
Créditos da imagem: Yufeng Zhang et al.
www.inovacaotecnologica.com.br/noticias/not... via @inovacaotecnologica.com.br
Princípio e configuração experimental da multiplicação paralela de matrizes ópticas.
January 2, 2026 at 7:31 AM
xandaolp.bsky.social
Descoberta alternativa sem chumbo para componentes eletrônicos essenciais
Créditos da imagem: Reza Ghanbari et al.
www.inovacaotecnologica.com.br/noticias/not... via @inovacaotecnologica.com.br
A técnica de tensionamento mecânico, ilustrada na figura, também é usada no silício, conhecido como silício expandido.
January 2, 2026 at 7:23 AM
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After 3 Years a Cat Who Came to a Rescue as a Kitten Finally Has What She's Been Waiting for This New Year
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After 3 Years a Cat Who Came to a Rescue as a Kitten Finally Has What She's Been Waiting for This New Year
After three long years, a cat who came to a rescue as a kitten has finally received what she's been waiting for, just in time for the New Year. LenaBestFriendsFelinesAt ...
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January 1, 2026 at 8:18 AM
xandaolp.bsky.social
Auroral Corona
Image Credit & Copyright: Roi Levi
apod.nasa.gov/apod/ap26010...
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 northland and skyscape captures the evocative display in a 21 frame panoramic mosaic.
January 1, 2026 at 8:08 AM
xandaolp.bsky.social
'Unwanted' Kittens Find Second Chance and Make It Their Mission to Steal Hearts, One Wobbly Step at a Time
www.lovemeow.com/kittens-miss...
'Unwanted' Kittens Find Second Chance and Make It Their Mission to Steal Hearts, One Wobbly Step at a Time
"Unwanted" kittens were given a second chance and made it their mission to steal hearts, one wobbly step at a time. Bilboket and FalloneChatonsOrphelinsMontrealThree kit...
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December 31, 2025 at 7:13 AM
xandaolp.bsky.social
HH-222: The Waterfall Nebula
Image Credit & Copyright: Mike Selby
apod.nasa.gov/apod/ap25123...
What created the Waterfall Nebula? The origin is still being researched. The structure, officially designated Herbig-Haro 222, appears in the region of NGC 1999 in the Great Orion Molecular Cloud complex. The elongated gaseous stream stretches about ten light years but appears similar to a long waterfall on Earth. Recent observations indicate that HH-222 is likely a gigantic gaseous bow shock, similar to a wave of water caused by a fast-moving ship. The origin of this shock wave is thought to be a jet outflow from the multiple star system V380 Orionis off the lower left of the frame. Therefore, gas does not flow along the waterfall, but rather the entire structure moves toward the upper right. The Waterfall Nebula lies about 1,500 light years away toward the constellation of Orion. The featured image was captured earlier this month from El Sauce Observatory in Chile.
December 31, 2025 at 6:32 AM
xandaolp.bsky.social
Vida pode ter emergido em géis da Terra primitiva
Crédito da imagem: Nirmell Satthiyasilan
www.inovacaotecnologica.com.br/noticias/not... via @inovacaotecnologica.com.br
Géis primitivos, como ilustrado na figura, poderiam ter concentrado e protegido moléculas, possibilitando reações químicas complexas que levaram à formação das células.
December 31, 2025 at 3:09 AM
Reposted by Alexandre Henrique Lopes Porto
xipteras.org
The Moon is in 🌔 the Waxing Gibbous phase, with 82,4% illumination, passing through the constellation of Aries, ~358000 km away from us. #moonphase
December 30, 2025 at 9:23 PM
xandaolp.bsky.social
Por que os buracos negros brilham tanto?
Créditos da imagem: Lizhong Zhang et al.
www.inovacaotecnologica.com.br/noticias/not... via @inovacaotecnologica.com.br
Próximo ao buraco negro (localizado no centro), um fluxo de acreção forma um disco térmico denso e fino, imerso em um envelope dominado por campos magnéticos, que ajuda a estabilizar o sistema. O fluxo é dominado por radiação e altamente turbulento, mas a estrutura central do disco térmico (amarelo) permanece notavelmente estável.
December 30, 2025 at 11:47 PM
xandaolp.bsky.social
An Artificial Comet
Image Credit & Copyright: Wang Chao
apod.nasa.gov/apod/ap25123...
Yes, but can your comet tail do this? No, and what you are seeing is not the tail of a comet. The picture features a cleverly overlayed time-lapse sequence of a group of satellites orbiting Earth together in June. Specifically, these are Starlink communications satellites in low Earth orbit reflecting back sunlight before sunrise to Inner Mongolia, China. Although the satellites appear to the human eye as points, the 20-second-long camera exposures caused them to appear as short streaks. Currently there are over 9000 Starlinks in orbit, with more being launched nearly every week. Other satellite constellations are also being planned.
December 30, 2025 at 8:15 AM
xandaolp.bsky.social
M1: The Crab Nebula
Image Credit & Copyright: Alan Chen
apod.nasa.gov/apod/ap25122...
This is the mess that is left when a star explodes. The Crab Nebula, the result of a supernova seen in 1054 AD, is filled with mysterious filaments. The filaments are not only tremendously complex but appear to have less mass than expelled in the original supernova and a higher speed than expected from a free explosion. The featured image was taken by an amateur astronomer in Leesburg, Florida, USA over three nights last month. It was captured in three primary colors but with extra detail provided by specific emission by hydrogen gas. The Crab Nebula spans about 10 light years. In the Nebula's very center lies a pulsar: a neutron star as massive as the Sun but with only the size of a small town. The Crab Pulsar rotates about 30 times each second.
December 29, 2025 at 8:08 AM
xandaolp.bsky.social
Shelter Cat with a Love for Kitchen Cabinets Tries to Win Every Heart Until His Wish Comes True
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Shelter Cat with a Love for Kitchen Cabinets Tries to Win Every Heart Until His Wish Comes True
A shelter cat with a love for kitchen cabinets tries to charm every person he meets until his wish comes true. OtisCliftonAnimalShelterOtis, a handsome, big-cheeked tabb...
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December 29, 2025 at 8:03 AM