Space Sunday: JWST and 2022 highlights

An artist’s impression of the James Webb Space Telescope (JWST) with Earth and the Sun beyond. Credit: ESA/ATG medialab
Following its launch on December 25th, the James Webb Space Telescope (JWST) has completed several major steps in the deploying its critical hardware as it continues its month-long voyage towards its operational orbit at the Earth-Sun L2 Lagrange point.
Here’s a brief summary of what has happened thus far with deployments.

In the early houses of Wednesday, December 29th (UTC), Earth, JWST unfolded the forward sunshield pallet, lowering it away from its stowed position in front of the central deployable tower supporting the (still folded) primary and secondary mirror assemblies and the telescope’s massive radiator, and containing JWST’s vital electronics and science instruments.

Unfolding the after sunshield pallet. Credit: NASA

The lowering process took 20 minutes to complete, and was followed by the aft sunshield pallet being unfolded from behind the mirror tower in an 18-minute operation. After this, JWST went through several hours of additional operations, including ensuring the pallets were correctly in place and their sub-systems operational, and orienting the observatory with respect to the Sun to provide optimal shielding when the sunshield is deployed and tensioned. Once all this was completed, the command was given for the pallets to lock themselves in their deployed condition.

Later on the 29th, the deployable tower was raised some 1.2 metres from its “stowed” state over a 6-hour period. This moved it away from JWST’s thrusters and provided the room needed for the sunshields to be deployed and tensioned.

A computer generated simulation of one of JWST’s boom being extended, drawing out the sunshield membranes. Credit: NASA

Thursday, December 30th saw the deployment of the sunshield commence. A three-part process, and one vital to the observatory’s operations, this started with the drawing back of the membranes that have protected the delicate sunshield.

On December 31st, the booms that extend the five layers of the sunshield were extended. Operations began at 18:30 UTC, with the five segments of the portside boom extending outwards from the mid-point between the two sunshield pallets. The procedure took just over three hours to complete, and was followed by the extension of the starboard boom, which took a similar amount of time, also drawing out the membranes of the sunshield on that side of the telescope.

A computer generated simulation of one of JWST’s boom being extended, drawing out the sunshield membranes. Credit: NASA

Overall, the deployment of both booms took longer than anticipated, but was successfully completed, with operations then being halted for New Years Day. On January 2nd, operations resumed on the tensioning of the membranes. A 2-day operation, this involves separating each of the 5 membranes from the others and then tensioning it using the side booms and four fore-and-aft boom mechanisms. Once this has been completed, the focus will switch to deploying the telescope’s “eyes” – its secondary and primary mirrors.

The other news on the programme is that such was the accuracy with which the Ariane 5 placed JWST onto its transfer orbit, coupled with the smoothness of the first “mid-course” thruster burns, far less propellants that had been estimated. This now means that the observatory has sufficient reserves to complete at least a 10-year mission (although NASA remains focused on the 5-year primary mission).

Space Highlights for 2022

I generally try to look ahead to key space events at the start of the year, and while this may not be as comprehensive as previous years, but the following is offered as a broad summary of high points.

Launches

Several new launch vehicles will undergo initial launch tests / flight in 2022, including:

  • Block 1 NASA Space Launch System (USA): maiden flight, February 2022 carrying the Artemis 1 mission hardware and cubesats for ten missions in the CubeSat Launch Initiative (CSLI), and three missions in the Cube Quest Challenge. The payloads will be sent on a trans-lunar injection trajectory.
Artemis 1 mission – click for full size. Credit: NASA

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The pink salt lakes Of Florence in Second Life

Florence, January 2022 – click any image for full size

Just before the New Year, Gnaaah Xeltentat kindly sent me a personal invitation to visit the latest iteration of Florence, his Homestead region, which has once again been given a new look by Iska (sablina), assisted by Tippah.

At the time of my last visit, almost a year ago (see: Spring at Florence in Second Life), the region had just been given a clever re-working by Iska and Tippah that offered a new twist on the layout originally created by Minnie Atlass in 2020 (see: Witnessing Florence at Low Tide in Second Life). For this iteration, however, the region has been completely redressed by Iska, who has drawn her inspiration from a location in the physical world; the Salin d’Aigues-Mortes (salts of Aigues-Mortes), Camargue, in the south of France.

Florence, January 2022

A natural wetland sitting between the Mediterranean Sea and the two arms of the Rhône delta, it is home to what are regarded as the largest salt water marshes in Europe, one designated a Wetland of International Importance. It is also noted as an Important Bird Area, being home to over 400 species of birds (including being one of the few European habitats for the greater flamingo). And if that weren’t enough, the area is also the one of the largest producers of salt in Europe, producing around 500,000 tonnes annually.
Whilst relatively unknown outside of France, the salt marshes are a popular destination for the French – the rather vicious local mosquitoes notwithstanding ; the result of both the richness of the birds and wildfowl in the area, and the natural pink colouring to the waters of the marshes.

The latter is due to the microscopic algae, Dunaliella Salina (the same algae that gives flamingos their pink colour) which is common in high concentrations of enclosed salt water environments such as the waters of the Camargue. As the algae grow, they synthesise beta-carotene (which also gives some fruit and vegetables their red/orange pigment) to protect them from the Sun, and it is this that makes the water in the marshes appear pink.

Florence, January 2022

All of this is encapsulated in the new design for Florence in a simple, elegant layout that has much to attract the eye and camera. The landing point is located alongside a collection of 31 rectangular salt tanks, representing those used by the Salin Group to “farm” salt from the region. To the east, but close by are three high peaks of salt, representing the massive tables of salt that tend to be a feature of the region as the salt is gathered and dried..

To the west, the land forms more natural bodies of salty water, sand / salt bars between them helping to form paths, and the waters being enjoyed by flamingos and other waterfowl whilst other birds fly overhead. Along one of the “sand bars” there sits a little artist’s retreat, its flat roof offering a good look-out point, while a wooden deck extends out into another pool, offering a further place to sit – or from which to fly a kite.

Florence, January 2022

Crossing the region from east to west is a set of rail tracks long which flatcars of salt can be rolled, a rutted cart / vehicle track paralleling them. A bridge from here spans a water channel to reach a larger dry landmass, home to a lighthouse and the local hotel. The latter also reflects the relaxed nature of the area: unsupervised access to the salt lakes in Camargue is not permitted; visitors are expected to stay locally and join one of the guided tours offered by foot or bicycle – or, for those who like a little more comfort – in a 75-minute train ride (perhaps again reflected by the presence of rail tracks in the region).

Also to be found in the region are horses, emblematic of the  Camargue horse, an ancient breed of horse of unknown origin and indigenous to the region, believed to be  one of the oldest breeds of horses in the world. These hardy little horses live in semi-feral conditions and are the traditional mount of the Camargue “cowboys”  who herd the black Camargue bulls. The latter are also represented in the region by a pair of cattle.

Florence, January 2022

As well as getting around on foot, the region offers a little motor boats visitors can putter around it, motoring along the water channel, or out to the little island that sits on its own, or around to the western side of the region, and the cover that awaits to one side of the hotel.

It is clear that a lot of care and consideration has gone into the creation of this setting such that it offers a good suggestion of the Camargue salt marshes whilst also being a very individual region design even if one does not reference them. There are multiple places to sit – outdoors and in, and – as noted – numerous opportunities for photography. But don’t take my word for it – get your 2022 off to a non-snowy start and pay a visit yourself!

Florence, January 2022

My thanks again to Gnaaah for the invitation!

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The Incal and the 4 mazes in Second Life

Akikaze: The Incal and the 4 mazes

Currently open at the Akikazie art hub, curated by , is a new large-scale installation by Betty Betty Tureaud which, for lovers of mazes in liable to be a measure of fun.

The Incal and the 4 Mazes takes as its inspiration the French graphic novel series The Incal (L’Incal), written by Alejandro Jodorowsky and originally illustrated by Jean Giraud (aka Mœbius), who published the initial stories in the series in the sci-fi / horror Métal hurlant (“Howling Metal”) science fiction / horror comics series he co-founded, with the full story later published as a single volume by Marvel/Epic. Set within a fictional universe, the story follows the adventures of one John Difool (in fact, the first story in the series was published in  Métal hurlant as “an Adventure of John Difool, and artefacts referred as the Incal – The Light Incal and the Dark Incal.

Akikaze: The Incal and the 4 mazes

The graphics novels include multiple themes, include technology, religion, space, good and evil,  and more. Within her installation, Betty pays homage to some of the themes and ideas through the four titular mazes of the the installation. These are placed individually placed in four blockhouses, and can only be accessed via a teleport. Each maze has a theme (or element) – Space, Earth, Techno, Mind – with those visiting referred to at the 5th element (a passing reference, perhaps to Luc Besson’s cult sci-fi  classic of that title?).

Accessing the mazes is a case of clicking on one of four teleport options arrayed at the landing point,  an Incal (Space), an eyeball (Mind), a pink flying creature and a cube that is mindful of those of the Borg (Techno).

Clicking on any of the them will carry you into one of the mazes. These are all designed around s similar layout, and the object in to find your way to the centre and both a gift and a teleport back out. None is particularly hard to complete and again – having not read the Difool series, I’m not entirely aware as to how each ties back to L’Incal.

However, there is a rich degree of symbolism within some of the mazes. Within the “techno” cube for example, the Borg-like is continued, but more particularly, some of the hallways of the maze are marked by curtains of binary notation (and clouds of binary lines tumble here and there as well). These may at first appear meaningless, but actually represent “2022” –  the year we have just entered. Meanwhile, within the “Mind” maze, there appear eyes and hands that bring to mind the Lab’s own eye-in-hand logo.

As well as the mazes, visitors can walk between the blockhouses to a teleport point at their centre. This provides access to the Incal floating over the installation as it flashes light through the four blockhouses.

Akikaze: The Incal and the 4 mazes

Those teleporting up to it will find sit points allowing them to take flight around the Incal  – although be careful when you stand: it can be a bit of the drop to the blockhouse below. There are several other points of interest around the installation – a crystal that rotates on being touched, another that generates a pyramid of glowing light, a cube that will provide information on Betty and a rezzer for a buzz fly creature you can sit on and take to the air.Curious, symbolic,  carrying with it an element of fun and the homage to Jodorowsky  and Giraud Incal and the 4 Mazes offers an interesting visit with rewards from Betty.

Akikaze: The Incal and the 4 mazes

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