Hubble Captures Rare Triple Moon Transit Of Jupiter

Hubble Captures Rare Triple Moon Transit Of Jupiter

Hubble captures rare triple moon transit of Jupiter

These new NASA/ESA Hubble Space Telescope images capture a rare occurrence as three of Jupiter’s largest moons parade across the giant gas planet’s banded face. Hubble took a string of images of the event which show the three satellites — Europa, Callisto and Io — in action. There are four Galilean satellites — named after the 17th century scientist Galileo Galilei who discovered them. They complete orbits around Jupiter ranging from two to seventeen days in duration. The moons can commonly be seen transiting the face of Jupiter and casting shadows onto its layers of cloud. However, seeing three of them transiting the face of Jupiter at the same time is rare, occurring only once or twice a decade. The image on the left shows the Hubble observation at the beginning of the event. On the left is the moon Callisto and on the right, Io. The shadows from Callisto, Io and Europa are strung out from left to right. Europa itself cannot be seen in the image. The image on the right shows the end of the event, just over 40 minutes later. Europa has entered the frame at lower left with slower-moving Callisto above and to the right of it. Meanwhile Io — which orbits significantly closer to Jupiter and so moves much more quickly — is approaching the eastern limb of the planet. Whilst Callisto’s shadow seems hardly to have moved, Io’s has set over the planet’s eastern edge and Europa’s has risen further in the west. The event is also shown from start to finish in a video. Missing from this sequence is the Galilean moon Ganymede which was outside Hubble’s field of view. The moons of Jupiter have very distinctive colours. The smooth icy surface of Europa is yellow-white, the volcanic sulphur surface of Io is orange and the surface of Callisto, which is one of the oldest and most cratered surfaces known in the Solar System, is a brownish colour.

Image credit: NASA, ESA, Hubble Heritage Team

More Posts from Neptuneblueeee and Others

5 years ago

She did NOT have to go this hard

This Cat Is So Cute
This Cat Is So Cute
This Cat Is So Cute
This Cat Is So Cute
This Cat Is So Cute
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This Cat Is So Cute
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this cat is so cute

11 months ago
Powerful And Threatening, Queen Of The Boxes

powerful and threatening, queen of the boxes

1 year ago
US buildings kill up to a billion birds a year. These architects want to save them
the Guardian
Highly transparent glass can lead to devastating collisions. But innovations in design are creating safer skylines – without sacrificing bea

"Chicago’s 82-story Aqua Tower appears to flutter with the wind. Its unusual, undulating facade has made it one of the most unique features of Chicago’s skyline, distinct from the many right-angled glass towers that surround it.

In designing it, the architect Jeanne Gang thought not only about how humans would see it, dancing against the sky, but also how it would look to the birds who fly past. The irregularity of the building’s face allows birds to see it more clearly and avoid fatal collisions. “It’s kind of designed to work for both humans and birds,” she said.

As many as 1 billion birds in the US die in building collisions each year. And Chicago, which sits along the Mississippi Flyway, one of the four major north-south migration routes, is among the riskiest places for birds. This year, at least 1,000 birds died in one day from colliding with a single glass-covered building. In New York, which lies along the Atlantic Flyway, hundreds of species traverse the skyline and tens of thousands die each year.

As awareness grows of the dangers posed by glistening towers and bright lights, architects are starting to reimagine city skylines to design buildings that are both aesthetically daring and bird-safe.

Photo of a skyscraper stretching into the bright blue sky. Instead of the conventional smooth glass, the facade is covered by undulating waves of building material, sticking out from the bottom of each floor.

Pictured: Chicago's Aqua Tower was designed with birds in mind.

Some are experimenting with new types of patterned or coated glass that birds can see. Others are rethinking glass towers entirely, experimenting with exteriors that use wood, concrete or steel rods. Blurring lines between the indoors and outdoors, some architects are creating green roofs and facades, inviting birds to nest within the building.

“Many people think about bird-friendly design as yet another limitation on buildings, yet another requirement,” said Dan Piselli, director of sustainability at the New York-based architecture firm FXCollaborative. “But there are so many design-forward buildings that perfectly exemplify that this doesn’t have to limit your design, your freedom.”

How modern buildings put birds in danger

For Deborah Laurel, principal in the firm Prendergast Laurel Architects, the realization came a couple of decades ago. She was up for an award for her firm’s renovation of the Staten Island Children’s Museum when the museum’s director mentioned to her that a number of birds had been crashing into the new addition. “I was horrified,” she said.

She embarked on a frenzy of research to learn more about bird collisions. After several years of investigation, she found there was little in the way of practical tips for architects, and she teamed up with the conservation group NYC Audubon, to develop a bird-safe building guide.

The issue, she discovered, was that technological and architectural advancements over the last half-century had in some ways transformed New York City – and most other US skylines and suburbs – into death traps for birds...

At certain times of day, tall glass towers almost blend into the sky. At other times, windows appear so pristinely clear that they are imperceptible to birds, who might try to fly though them. During the day, trees and greenery reflected on shiny building facades can trick birds, whereas at night, brightly lit buildings can confuse and bewilder them...

A low-angle photo of a field of flowers spreads across the roof of a building, in yellows, reds, and greens. In the background, a lower part of the NYC skyline stretches across the image.

Pictured: A green roof on the Javits Convention Center serves as a sanctuary for birds.

The changes that could save avian lives

About a decade ago, Piselli’s firm worked on a half-billion-dollar renovation of New York’s Jacob K Javits Convention Center, a gleaming glass-clad space frame structure that was killing 4,000-5,000 birds a year. “The building was this black Death Star in the urban landscape,” Piselli said.

To make it more bird friendly, FXCollaborative (which was then called FXFowle) reduced the amount of glass and replaced the rest of it with fritted glass, which has a ceramic pattern baked into it. Tiny, textured dots on the glass are barely perceptible to people – but birds can see them. The fritted glass can also help reduce heat from the sun, keeping the building cooler and lowering air conditioning costs. “This became kind of the poster child for bird-friendly design in the last decade,” Piselli said.

The renovation also included a green roof, monitored by the NYC Audubon. The roof now serves as a sanctuary for several species of birds, including a colony of herring gulls. Living roofs have since become popular in New York and other major cities, in an inversion of the decades-long practice of fortifying buildings with anti-bird spikes. In the Netherlands, the facade of the World Wildlife Fund headquarters, a futuristic structure that looks like an undulating blob of mercury, contains nest boxes and spaces for birds and bats to live.

The use of fritted glass has also become more common as a way to save the birds and energy.

Earlier this year, Azadeh Omidfar Sawyer, an assistant professor in building technology in the Carnegie Mellon School of Architecture, working with student researchers, used open-source software to help designers create bespoke, bird-friendly glass patterns. A book of 50 patterns that Sawyer published recently includes intricate geometric lattices and abstract arrays of lines and blobs. “Any architect can pick up this book and choose a pattern they like, or they can customize it,” she said.

A clear pane of glass shows a very blurry reflection of buildings and trees. In focus are rows of very small, light gray shapes, which if you look closely are in the shapes of animals. You can make out a bird, an owl, some kind of mouse, but most of the shapes aren't quite clear/in focus.

Pictured: The fritted glass used in Studio Gang’s expansion of Kresge College at the University of California, Santa Cruz, depicts the animals in the local ecosystem.

Builders have also been experimenting with UV-printed patterns, which are invisible to humans but perceptible to most birds. At night, conservationists and architects are encouraging buildings turn off lights, especially during migration season, when the bright glow of a city skyline can disorient birds.

And architects are increasingly integrating screens or grates that provide shade as well as visibility for birds. The 52-floor New York Times building, for example, uses fritted glass clad with ceramic rods. The spacing between the rods increases toward the top of the building, to give the impression that the building is dissolving into the sky.

Gang’s work has incorporated structures that can also serve as blinds for birders, or perches from which to observe nature. A theater she designed in Glencoe, Illinois, for example, is surrounded by a walking path made of a wood lattice, where visitors can feel like they’re up in the canopy of trees.

A beautiful two-story building sits against the sky. Its interiors, warm oranges and yellows, are clear through the walls of floor-to-ceiling clear glass. The upper story has an overhanging balcony made of wood, enclosed with thin, criss-crossing vertical wood beams. There's a small wood attachment off to the building's side.

Pictured: The Writers Theatre, designed by Studio Gang, includes a walking path encased in wood lattice.

Rejecting the idea of the iridescent, entirely mirrored-glass building, “where you can’t tell the difference between the habitat and the sky”, Gang aims for the opposite. “I always tried to make the buildings more visible with light and shadow and geometry, to have more of a solid presence,” she said.

Gang has been experimenting with adding bird feeders around her own home in an effort to reduce collisions with windows, and she encourages other homeowners to do the same.

“I’ve found that birds slow down and stop at feeders instead of trying to fly through the glass,” she said.

While high-rise buildings and massive urban projects receive the most attention, homes and low-rise buildings account for most bird collision deaths. “The huge challenge is that glass is everywhere.” said Christine Sheppard, who directs the glass collisions program at the American Bird Conservancy (ABC). “It’s hard to know what I know and not cringe when I look at it.”

Tips for improving your own home include using stained glass or patterned decals that can help birds see a window, she said. ABC has compiled a list of window treatments and materials, ranked by how bird-safe they are.

Whether they’re large or small, the challenge of designing buildings that are safe for birds can be “liberating”, said Gang, who has become an avid birdwatcher and now carries a pair of binoculars on her morning jogs. “It gives you another dimension to try to imagine.”"

-via The Guardian, December 27, 2023

5 years ago

This planet is so fucking cool I love it so much

Amazing Nature Phenomenons

ᴋᴀᴡᴀʜ ɪᴊᴇɴ (ʙʟᴜᴇ ᴠᴏʟᴄᴀɴᴏ) ɪɴᴅᴏɴᴇsɪᴀ

Amazing Nature Phenomenons

ᴛᴜʀǫᴜᴏɪsᴇ ɪᴄᴇ: ʟᴀᴋᴇ ʙᴀɪᴋᴀʟ-ʀᴜssɪᴀ

Amazing Nature Phenomenons

sᴜᴘᴇʀᴄᴇʟʟ sᴛᴏʀᴍ

Amazing Nature Phenomenons

ɢʀᴇᴇɴ ғʟᴀsʜ sᴜɴsᴇᴛ

Amazing Nature Phenomenons

sɴᴏᴡ ᴄʜɪᴍɴᴇʏ: ᴍᴏᴜɴᴛ ᴇʀʙᴜs-ᴀɴᴛᴀʀᴛɪᴄᴀ

Amazing Nature Phenomenons

sᴋʏ ᴘᴜɴᴄʜ

Amazing Nature Phenomenons

sᴛʀɪᴘᴇᴅ ɪᴄᴇʙᴇʀɢs:ᴀɴᴛᴀʀᴛɪᴄᴀ

Amazing Nature Phenomenons

ʟɪɢʜᴛ ᴘɪʟʟᴀʀs

Amazing Nature Phenomenons

sᴀʟᴀʀ ᴅᴇ ᴜʏᴜɴɪ (ʀᴇғʟᴇᴄᴛɪɴɢ ᴅᴇsᴇʀᴛ) ʙᴏʟɪᴠɪᴀ

Amazing Nature Phenomenons

ᴍᴀᴇʟsᴛʀᴏᴍ

Amazing Nature Phenomenons

ᴇʏᴇ ᴏғ sᴀʜᴀʀᴀ:ᴍᴀᴜʀɪᴛᴀɴɪᴀ

Amazing Nature Phenomenons

ғɪʀᴇ ʀᴀɪɴʙᴏᴡ

Amazing Nature Phenomenons

ᴘᴏʀᴏʀᴏᴄᴀ (ɴᴇᴠᴇʀ ᴇɴᴅɪɴɢ ᴡᴀᴠᴇ) ᴀᴍᴀᴢᴏɴ ʀɪᴠᴇʀ-ʙʀᴀᴢɪʟ

Amazing Nature Phenomenons

ᴀᴜʀᴏʀᴀ ʙᴏʀᴇᴀʟɪs

Amazing Nature Phenomenons

ɢʀᴇᴀᴛ ʙʟᴜᴇ ʜᴏʟᴇ:ʙᴇʟɪᴢᴇ

Amazing Nature Phenomenons

ʀᴀɪɴʙᴏᴡ ᴇᴜᴄᴀʟʏᴘᴛᴜs ᴛʀᴇᴇs

Amazing Nature Phenomenons

sᴛᴏɴᴇ ғᴏʀᴇsᴛ:ᴍᴀᴅᴀɢᴀsᴄᴀʀ

Amazing Nature Phenomenons

ᴄᴀᴛᴀᴛᴜᴍʙᴏ ʟɪɢʜᴛɴɪɴɢ (ɴᴇᴠᴇʀᴇɴᴅɪɴɢ sᴛᴏʀᴍ) ᴠᴇɴᴇᴢᴜᴇʟᴀ

Amazing Nature Phenomenons

ᴍᴀᴍᴍᴀᴛᴜs ᴄʟᴏᴜᴅs

Amazing Nature Phenomenons

ᴡʜɪᴛᴇ ʀᴀɪɴʙᴏᴡ

Amazing Nature Phenomenons

ᴜɴᴅᴇʀᴡᴀᴛᴇʀ ᴄʀᴏᴘ ᴄɪʀᴄʟᴇs

Amazing Nature Phenomenons

ʙɪᴏʟᴜᴍɪɴᴇsᴄᴇɴᴛ ᴡᴀᴠᴇs

Amazing Nature Phenomenons

ᴍᴏʀɴɪɴɢ ɢʟᴏʀʏ ᴄʟᴏᴜᴅs

Amazing Nature Phenomenons

ᴠᴏʟᴄᴀɴɪᴄ ʟɪɢʜᴛɪɴɢ

Amazing Nature Phenomenons

ɴᴀᴄʀᴇᴏᴜs ᴄʟᴏᴜᴅs

Amazing Nature Phenomenons

ʀᴀɪɴʙᴏᴡ ᴍᴏᴜɴᴛᴀɪɴs:ᴄʜɪɴᴀ

Amazing Nature Phenomenons

ʟᴇɴᴛɪᴄᴜʟᴀʀ ᴄʟᴏᴜᴅ

Amazing Nature Phenomenons
5 years ago
Doctors Made A 3D Print Of An Ultrasound For An Expecting Mother Who Is Blind

Doctors made a 3D print of an ultrasound for an expecting mother who is blind

7 months ago

the average tumblr user will see this post. they will feel compelled to open up the comments. when they do this they'll see that nearly every comment written is identical.

they all say "Man, I sure do love the hivemind".

with that exact same punctuation and capitalization.

upon scrolling further they might find comments that do not say this.

they will be compelled to reply to that comment with the word "Anomaly". and nothing more.

1 year ago
Northeastern Global News
Pet parrots in a new study led by Northeastern researchers loved using iPads to call fellow birds to chat while forging lasting friendships.
"A Few Significant Findings Emerged. The Birds Engaged In Most Calls For The Maximum Allowed Time. They

"A few significant findings emerged. The birds engaged in most calls for the maximum allowed time. They formed strong preferences—in the preliminary pilot study, Cunha’s bird Ellie, a Goffin’s cockatoo, became fast friends with a California-based African grey named Cookie. “It’s been over a year and they still talk,” Cunha says.

"According to Kleinberger, the types of vocalizations the birds used suggested they were mirroring the call and response nature they engage in in the wild—“hello, I’m here!” in parrot-speak."

(courtesy wolvendamien at Bluesky)

2 years ago
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