Space Sunday: China, Mars and the Drake Equation revisited

A colour close-up captured by China’s Zhurong rover via its high-resolution cameras as they look over the rear deck, showing the main communications relay and one of the unfolded solar arrays. This image was captured before the rover deployed from its lander. Credit: CNSA

China’s Zhurong rover has commenced operations on the surface of Mars. The rover, which is slightly larger and heavier than NASA’s MER rovers Spirit and Curiosity, arrived on the surface of the planet on May 16th atop its lander vehicle (see: Space Sunday: China on Mars, JWST and a space tourist).

Since that time, the rover has been put through its first battery charging cycle after unfolding its solar panels, and then entered an initial telemetry-based check-out and commissioning phase that saw some of its core systems powered-up in readiness to commence operations, with similar checks being carried out on the lander.

An infographic on China’s Zhurong rover via AFP, with original material via CNSA and Chinese state media

This meant that it was not until May 19th that the China National Space Administration (CNSA) released the first images taken by the rover’s camera systems.

The first images to be released were those captured by Zhurong’s hazard avoidance cameras, which – and like their American counterparts – operate primarily in black and white. In particular, these images showed that the lander vehicle had successfully deployed the ramp Zhurong needed to descend onto the planet’s surface from the back of the lander.

The black-and-white images were followed by colour pictures captured by both the rover’s hazcam system and its high-resolution imaging system which is, again like US designs (and the upcoming EuroMars rover, Rosalind Franklin, mounted on a mast located on the rover’s forward section and capable of taken images of all of the rover’s surroundings.

China’s Zhurong (l) and America’s Perseverance (r) in a comparison image by CNSA

China has been fairly close-lipped about the lander and rover – although the entire Tiawen-1 mission is seen as an “international” mission by Chinese authorities -,  only releasing images via social media, etc., after the fact, with little or no fanfare beforehand. This meant it was Twitter snoops who first spotted the rover had actually deployed from this lander vehicle some time in the early hours of Saturday, May 22nd, UTC.

Andrew Jones was one of the first to spot CNSA images that showed the rover had rolled off the lander. However, CNSA quickly followed-up with more images captured by the rover, some of which were colour, and others were put together to form a “video” of the deployment process.

Andrew Jones was one of the first to spot China had announced Zhurong had driven off of its lander.

Now it is on the surface of Mars, Zhurong is expected to operate for a primary mission period of 90 sols (93 days) – which is likely to be extended if the rover completes that mission successfully. It will explore the area around its lander, using both it and the Tianwen-1 orbiter as communications relays, while carrying out research into the Martian weather and climate, and surface and sub-surface conditions.

The return of the first images from the rover sparked an appeal to the US Congress from NASA’s new Administrator, Bill Nelsen, who asked for a boost to the agency’s funding so that it might better manage deep space research and the planned return to the Moon in the face of the growing competition from China.

A colour picture from Zhurong’s hazcams as it roles down the ramp from the lander on May 22nd. Credit: CNSA

It has not all been smiles and roses for China, however. As  I previously reported, the country can in for international criticism for failing to handle the uncontrolled return to Earth of the 23-tonne core stage of the long March 5B core stage used to lift the Tianhe primary module of the country’s new Tiangong space station. Following up from that mission, China had planned to launch its first mission to Tianhe on May 19th.

This was to be the Tianzhou-2 automated resupply vehicle. A fully automated, 13-tonne vehicle, Tianzhou-2 was supposed to make an automatic rendezvous  and docking with Tinahe in advanced of the first crewed mission to the fledgling space station, which is due to occur in June, 2021; however, the launch was scrubbed as a result of “technical issues”. Initially re-scheduled for lift-off on Thursday, May 20th, the launch was again postponed, and has now been pushed back until Friday, May 29th.

A Chinese Long March 7 rocket carrying the Tianzhou-2 cargo ship rolls out to a launch pad at the country’s Wenchang Satellite Launch Centre on Hainan Island. Credit: CASC.

When Tianzhou-2 does eventually lift-off atop its Long March 7 booster, it will be carrying 6.5 tonnes of equipment and supplies for the first crew to visit Tianhe, and consumables for the station itself, and will remain docked through the 3-month period of the Shenzhou-12 crewed mission. During the crew’s visit, Tianzhou-2  will perform a set of automated undocking, free flight and rendezvous / docking manoeuvres as rehearsals in readiness for when the station’s science modules are launched.

Tianzhou-2 will depart Tianhe ahead of the Shenzhua-12 crew. The station will then be visited by a further automated res-supply vehicle and the Shenzhou-13 crew, over late 2021 / early 2022, for the Chinese are calling the “Critical Technology Validation Phase” of the station’s commissioning, verifying it is ready for the launch of the two science modules. These will take place in 2022, paving the way for full operations to commence from 2023.

Continue reading “Space Sunday: China, Mars and the Drake Equation revisited”

Finding a Hidden Bottle in Second Life

Hidden Bottle, May 2021 – click any image for full size

Num Bing-Howlett (Num Bing) and her SL partner, Clifton Howlett, sent me a personal invitation to visit their latest region design, Hidden Bottle, which recently opened.

I’ve previously written about Numb and Cliff’s designs in these pages, and have always enjoyed exploring them, so I took the first opportunity I could to hop over and “have a pike” as people are prone to say in the part of the world I was born in.

Hidden Bottle, May 2021

For this build, Numb and Cliff have created a little tropical corner of the world given over to pirate legend, as the About Land description notes:

Welcome to Hidden Bottle @ Gin!
Pirates discovered the Gin islands long ago & used it’s hidden location to distil their bootleg Gin. Now we continue on using their same recipe for happiness…sunshine, smiles, & a great gin!
Be careful for the overhead gondola & enjoy your time here at Hidden Bottle…& don’t forget the tonic!
Hidden Bottle, May 2021

I’m a little surprised the tipple being made wasn’t rum given it’s pirates we’re talking about; perhaps the story is simply something made up by the local to encourage tourists – or maybe the pirates in question had a more refined taste 😉 – and of course, “gin” is entirely in keeping with the region’s designated name – and there is a still awaiting discovery, if you can find it!

The setting primarily comprises a ruggedly handsome pair of islands that rise from the sea, and which if viewed from above look like a hook extending outwards from a blocky wrist.

Hidden Bottle, May 2021

It might be that, once upon a time the two were joined as one, but time and nature have worn a watery channel between them, a channel now spanned thanks to the hands of Man, a broad wooden platform crossing over the water and that serves as both a home to a small bar and also as a boarding point for the cable car system that runs around and through the islands.

The latter is an impressive ride, rising from the the water-spanning deck to follow the square cliffs of the “wrist” island, its cables supported by tall pylons that lay at first embedded in the rock of the island to lift cable cars up over a corner of the island’s flat head, before dropping their cables back down towards the sea and a neat line of their brethren that march single file out over the shallows of the sea and around the north side of the “hook” island, where they loop the highest peak and then descent by way of gorge and rocky arch to once more join the low-lying deck.

Hidden Bottle, May 2021

The cars that run along this cableway offer an ideal means to see much of the beauty of the setting, while platforms periodically placed along the route – some of them quite precipitously – offer places to both board and leave the cars and continue exploring on foot.

Mirroring the path of the cable cars, as is oft the way with such systems, are paths that wind up the cliffs and hills of the island, allowing people the means to explore on foot – and as the cars do not reach all the places waiting to be discovered, following them upwards (and back down!) is recommended.

Hidden Bottle, May 2021

For those who prefer, the southern and eastern curve of the islands cup within them calm waters where swimming or lazing on an outrigger boat might be enjoyed together with resting on the sands. Beneath the waves, for those who care to look / dive, fish and turtles swim whilst above, extending from the cliffs, an events stage offers another lookout point. And for those who fancy exploring more, a grassy route passes under a great arch of rock to reach the north side beach and its own hideaways.

With winding paths meandering over the hilltops, boardwalks and stairways climbing the cliffs to platforms and palm-crowned heights rich with the song of exotic birds as they fly around and through the trees, Hidden Bottle is a delight to explore. Throughout all of this are numerous places to sit and relax and just appreciate the setting and its promise of distant escape and freedom. and, needless to say, present photographers with a wealth of opportunities to exercise their shutters. In fact, you might say, Hidden Bottle / Gin are a perfect tonic if you need a getaway!

Hidden Bottle, May 2021

My  thanks to Numb for the invite!

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American fairy tales, Russian myths, fishing & furry aliens

Seanchai Library

It’s time to highlight another week of storytelling in Voice by the staff and volunteers at the Seanchai Library. As always, all times SLT, and events are held at the Library’s home in Nowhereville, unless otherwise indicated. Note that the schedule below may be subject to change during the week, please refer to the Seanchai Library website for the latest information through the week.

Sunday, May 21st: 13:30 Tea-Time with L. Frank Baum

Lyman Frank Baum (May 15th, 1856 – May 6th, 1919) was an American author best known for his children’s books, particularly The Wonderful Wizard of Oz and its sequels (14 novels in all). His prolific output included 55 novels, 83 short stories,  over 200 poems and at least 42 scripts.

In 1901, twelve of his stories were published in anthology form by the George M. Hill Company under the title American Fairy Tales, the move designed by Baum and his publisher to capitalise on the success of The Wonderful Wizard of Oz.

The 12 stories comprise The Box of Robbers, The Glass Dog, The Queen of Quok, The Girl Who Owned a Bear, The Enchanted Types, The Laughing Hippopotamus, The Magic Bon Bons, The Capture of Father Time, The Wonderful Pump, The Dummy That Lived, The King of the Polar Bears. and The Mandarin and the Butterfly.

All 12 are noted for the ironic or nonsensical morals attached to their ends and their satirical, glib, and tongue-in-cheek  tones that gives them an appeal to adult readers. They are also the subject of Tea-Time with L. Frank Baum, with Kayden OConnell, Corwyn Allen, Glori, and Caledeonia.

Monday, May 24th: 19:00 Saturn Rukh

In an unspecified time in the future, a team of astronauts is sent to Saturn on what could be a one-way mission. Financed by a multi-national consortium, their mission is to establish a factory in to upper reaches of the planet’s atmosphere where it can “mine” Saturn’s abundant helium to produce “meta” (nitro-stabilised metastable helium), a powerful propellant.

If they are successful, each of the astronauts stands to earn a billion dollars on their return to Earth. The catch? They only have sufficient fuel to reach Saturn – they must use the factory to produce the fuel needed to make their return to Earth.

However, things go awry when the mission enters the Saturnian atmosphere – and crash-lands on the back of an enormous creature that “swims” through the atmosphere. Another of the creatures – which appear to be semi-intelligent and which the astronaut dub “Rukh” – swallows some of the mission’s equipment, leaving the team with no choice but to attempt to establish communications with the creatures and attempt to recover their equipment.

Join Gyro Muggins as he reads the last full-length novel by physicist and author Robert L. Forward.

Tuesday, May 25th

12:00 Noon: Russell Eponym, Live in the Glen

Music, poetry, and stories.

19:00: Old Peter’s Russian Tales

Journalist Arthur Ransome – who would later gain fame for Swallows and Amazons, – travelled between England and Russia either side of the 1917 revolution. His initial reason for doing so was to escape his marriage. However, he became fascinated by the Russian language and life, particularly old folk tales.

In 1912 he came across a collection of translations of tales into English, but found the language and style exceptionally poor. However, he was captivated by the richness of the material, noting it differed from both Scandinavia, Brittany, Wales and Scotland.

So in 1914, he set about collecting tales and translating them for himself whilst in Russia, with a volume of stories published under the title Old Peter’s Russian Tales in 1916, when he was staying in Vergezha, on the River Volkhov.

Now Willow Moonfire brings these tales to Seanchai Library.

Wednesday, May 26th, 19:00: Carl Hiaasen’s Skink

A native Floridian, Carl Hiaasen  is an American journalist who focused on political issues (notably corruption, environmental issues and other wrong-doings) within his home state. Starting his career in the 1970s , he became renowned for being exceptionally outspoken – even against his own employers.

Carl Hiaasen. Credit: Joe Rimkus Jr.

During the 1980s, he started writing fiction in his spare time, achieving initial success with three co-authored novels published between 1981 and 1984, as well as writing several non-fiction titles.

In 1987, his second novel, Double Whammy introduced the “trailer park star tenant” and private eye, C.J. Decker, which Hiaasen fondly refers to as “the first (and possibly only) novel ever written about sex, murder and corruption on the professional bass-fishing tour.” Among the cast of characters mixed into Double Whammy is one Clinton Tyree, the one-time governor of Florida, who abandoned his office and now lives as a outdoorsman (and partaker of roadkill cuisine) in the Everglades and the Florida Keys, using the pseudonym Skink.

Skink went on to become a recurring character in a further seven of Hiaasen’s novels to date, with all the books in which he features being gathered together under the general title of SKINK, with several of them being been among the 20+ works of fiction and non-fiction by Hiaasen to appear on the New York Times best-seller list.

Join Kayden Oconnell as he introduces Hiaasen ‘s writing and the tales in which Clinton “Skink” Tyree moves to a Second Life audience.

Thursday, May 27th 19:00: Little Fuzzy

Ktadhn Vesuvino reads the book by H. Beam Piper that spawned a series by him and other science fiction authors about a small, furry species dubbed Fuzzies.

Little Fuzzy charts the discovery of small furry species on the planet Zarathustra and the attempts by humans to determine whether or not they are sentient. If they are, then their planet will be declared a protect aboriginal  world. However, The Company has desires to control the planet and its resources.

2021 Raglan Shire Artwalk in Second Life

Raglan Shire Artwalk 2021

Raglan Shire, Second Life’s Tiny community, has once again opened its doors to people from across the grid as participating artists and visitors to the Raglan Shire Artwalk 2021.

This year marks the 16th Artwalk, with the event running through until Sunday, June 20th, 2021. It  offers an opportunity not just to appreciate a huge range of art from both the physical and digital worlds, but to also tour the Shire regions and enjoy the hospitality of the Raglan Shire community.

Raglan Shire Artwalk 2021: Sisi Biedermann

A non-juried exhibition, the Artwalk is open to any artist wishing to enter, and has minimal restrictions on the type of art displayed (one of the most important being all art is in keeping with the Shire’s maturity rating). All of this means that it offers one of the richest mixes of SL art displayed within a single location in Second Life, with 2D art is displayed along the hedgerows of the Shire’s pathways and tree platforms overhead and 3D art among the community’s parks.

Each year attracts well over a hundred SL artist – and this year is no exception. The depth and range of art on display is guaranteed to keep visitors exploring the paths and walks around the through the hedgerows – and if walking proves a little much, there are always the Shire’s tours to ease the load on the feet.

Raglan Shire, Artwalk 2021: Skyblue Earthboy (l) and Uleria Caramel (r)

Also, teleport boards are provided to help people find their way around the exhibition spaces. However, given this is an opportunity to visit and appreciate Raglan Shire, I do recommend exercising your pedal extremities and doing at least some of your exploration on foot – just keep in mind people do have their homes in the regions as well.

Given the number of artists involved, there isn’t a published list of participants, but anyone interested in the world of SL art is bound to recognise many of the names of the artists here. The Artwalk is also a marvellous way to see art from both our physical and digital worlds and for catch artists both familiar and new to your eye. Just don’t try to see it all at once; the Artwalk is open for a month, which gives plenty of time for browsing and appreciating the art without feeling overloaded.

Raglan Shire Artwalk 2021: my little corner

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All of the Raglan Shire Artwalk regions are rated General)

Four Bridges in Second Life

Four Bridges: Summer Quest, May 2021 – click any image for full size

I recently received an invitation from Trill Zapatero (Wynaz) to visit her latest creation, which has just opened to the public.

Operating under the banner Summer Quest @ Four Bridges, it is a two region estate (A Full and a Homestead) that she has spent the last four months working on. Now in the Destination Guide, it is a location that does, without any exaggeration, make for a simply stunning visit.

Four Bridges: Summer Quest, May 2021

Those arriving for the first time should be delivered to the main landing point, located on an aerial platform over the estate. It is here that visitors will be able to join the estate’s  Experience – a vital part of the visit, as it will enable seamless teleports between some of the locations within the estate, and this is key to getting to see everything the regions have to offer. It is also at the landing point that visitors can obtain the local teleport HUD, which also works through the experience.

The latter provides access total of 16 destinations within Four Bridges, thus providing a quick means of hopping point-to-point. However, to appreciate the estate fully, I strongly recommend setting time aside and using one of the teleport boards available at the landing point to reach ground level, and then set out on foot.

Four Bridges: Summer Quest, May 2021

The setting is that of a mountainous region, the surround encompassing both regions forming a  ring of high mountains while the regions themselves built up using landscaping kits by Alex Bader. This is quite stunning work, providing a high peak within the Homestead region, with with slopes descending into the Full region and rocky arms reaching out to circle a large, crater-like lake.  And believe when I say that these words simply do not do the build any justice whatsoever.

A deep gorge extends outwards from the crater lake, splitting the land open as it runs south, gradually broadening until it passes through a narrow neck spanned by a humpbacked bridge. This bridge forms part of a lowland track that winds around the regions and climbs part-way up into their highlands to offer an extensive route to walk – or ride – around the the setting (those with a wearable horse can wear it, while there are horse rezzers to be found around the route for those otherwise on foot.

Four Bridges: Summer Quest, May 2021

Throughout both regions are rope slides, climbs, places to sit both indoors and out, a major slope running down the side of Crazy Fox mountain that looks as if it is ideal for skiing and / or sledding when the snow falls, boats to sit upon or take out on the water, opportunities for swimming and more. Nor is that all – there are adventures to be found both underground and underwater.

The former of these comes in the form of two caves – Dack Cavern and Gwendolyn Cave. These can be reached by both the teleport system HUD or by finding their entrances and walking into them – providing you have accepted the local Experience at the main landing point, that is. Those who have will be teleported to the caverns proper, which occupy platforms over the regions. Of the two cave systems, Gwendolyn is the larger, offering a winding trail underground, complete with further teleport systems back to ground level that will delivered you to different points in the park.

Four Bridges: Summer Quest, May 2021

For the underwater aspect to the park, scuba tanks mark points where people can slip underwater and swim among the fish – although currently, you’ll nee your own diving kit; the tanks and goggles provided will provide a link to a Marketplace listing for those who might wish to purchase their own.

What I particularly like about this setting is the walks and the climbs. Trill has gone to great lengths to create an environment that looks and feels natural, right down to the way the trails have logs to hold the dirt in place as they climb / descend slopes and the stone steps along some of the trails sit as if cut into the rocks and the way of flat surfaces of rock have been turned naturally into paths around cliffs. Even the wooden steps and platforms that can be found throughout the mountains and cliffs look and feel right in their construction and placement.

Four Bridges: Summer Quest, May 2021

There’s a delightful magic about Four Bridges that makes a visit genuinely worthwhile, and the camp sites, the seats and swings, the cabins, lodges and other buildings scattered around high and low, together with the assorted activities – swimming, riding (horses and rope slides!), walking, diving, caving and exploring will keep visitors truly occupied; while photographers will appreciate the views and opportunities for capturing shots.

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2021 CCUG meeting week #20 summary

Enchanting Small town, March 2021 – blog post

The following notes were taken from my audio recording and chat log of the Content Creation User Group (CCUG) meeting held on Thursday, May 20th, 2021. These meetings are chaired by Vir Linden, with dates available via the SL Public Calendar and the venue for the CCUG is the Hippotropolis camp fire.

SL Viewer

Wednesday, May 19th saw two RCs updated:

  • The Fernet Maintenance RC viewer updated to version 6.4.19.559726. This version includes a set of Voice updates intended to reduce the number of drop-outs experienced when using the Voice plug-in. The full details of these updates can be found in the release notes and in the LL technology blog post.
  • The Love Me Render 5 (LMR5) viewer updated to version 6.4.19.559046.

The rest of the official viewers in the pipelines remain as:

  • Release viewer: Eau de Vie Maintenance viewer, version 6.4.18.558266, dated April 23rd, promoted April 29th.
  • Release channel cohorts:
  • Project viewers:
    • Legacy Profiles viewer, version 6.4.11.550519, dated October 26th.
    • Copy / Paste viewer, version 6.3.5.533365, dated December 9th, 2019.
    • Project Muscadine (Animesh follow-on) project viewer, version 6.4.0.532999, dated November 22nd, 2019.
    • 360 Snapshot project viewer, version 6.2.4.529111, dated July 16th, 2019.

General Viewer Notes

  • Both the updated Maintenance RC and LMR 5 are the front runners for promotion to de facto release status. From Vir’s comments, there appears to be a lean towards promoting the Maintenance viewer.
  • Whichever f the above is promoted first may see the Project UI RC viewer leapfrog the other in being the next viewer set for promotion.
  • LMR 6 is continuing through bug fixing work and being prepared for QA testing. It’s unlikely to appear until LMR 5 has been promoted.
  • The Legacy Profiles viewer is going through a further UI clean-up, and should be progressing towards either a further project viewer release or possibly an RC release in the not too distant future.
  • The simplified cache viewer is now being updated with suggestions for improvements submitted via Jira, and a new version should be appearing “pretty soon”.
  • It’s still hoped the at Apple notifications fixes will be appearing in an RC viewer in the near future as well.

Due to the volume of viewers entering the backlog awaiting release, LL is considering merging some of the upcoming RC versions in a bid to reduce the overall number that could end up in flight, and ease the pressure on the release cycle. This will depend on how suitable different RCs are for merging with one another.

ARCTan

Summary: An attempt to re-evaluate avatar rendering costs and the cost of in-world scene rendering, with the current focus on avatar rendering cost / impact, with the in-world scene rendering / LI to be tackled at some point in the future.

The UI updates for how avatar complexity information is presented to users will likely be made available as a project / RC viewer separately to any updates to the ARC calculations, so when it appears it will display values based on the current calculation formula. The updates to the formula itself will be then be implemented separately as the project progresses.

Jira Note – Reports Failing

There have been instances of reports filed via the Jira erasing the descriptive text when filed. Until the problem is resolved, the recommended workaround is to copy the descriptive text fields to a notepad app or similar, then check the report after submission. If the text is missing, the report can be edited and the information cut-and-pasted back into it.

In Brief

  • Account / inventory syncing between Agni (the Main grid) and Aditi (the Beta grid) remains broken, but LL are working to fix it. One aspect of the issue appears to be inventory size on Aditi accounts.
    • As a temporary workaround, it has been suggested that those who can access the beta grid and who have very large inventories, consider deleting unwanted items from their Aditi inventory (not their main grid inventory), as this seems to improve the chances of a successful log-in.
  • In 2019, a viewer-side change was made to ensure individual objects in a mesh linkset upload would retain their original name (rather than all being converted to “Object” with the exception of the first object in the linkset). However, this change is still awaiting server-side support in order to work, and there is currently no ETA on inplementation.
  • There have been requests for additional Bakes on Mesh AUXiliary texture channels. However, there is reluctance at the Lab to do so without a substantial use case, as it would require an extensive overhaul of the Bake Service to accommodate the additional channels, which is not something LL wants to contemplate at present.
  • Date of next meeting: Thursday, June 3rd, 2021.