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Jumping on an asteroid: How VR is being used to visit worlds we can never reach

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I’m standing so close to JAXA’s Hayabusa2 asteroid lander that I could reach out and touch it. Instead, I jump on top of it. Then I strike a pose. When I leap off, I float for a moment in the low gravity before touching down gently on the surface of Ryugu, a craggy, gray world devoid of life and color.

The “Iin this situation is my avatar, a digital approximation of myself that has a more consistent beard length and isn’t constantly rubbing sleep from its eyes. The Hayabusa2 spacecraft I stood on, and the asteroid beneath, are digital avatars too, recreated in virtual reality.

The VR experience I was in forms part of the 2024 Astronomical Society of Australia’s Annual Scientific Meeting, where the country’s astronomers come together to present new research, share results and mingle. This year’s meeting, in June, was almost entirely online, making use of the platform Spatial to provide attendees access to the conference in VR.

A digital venue, featuring poster halls, exhibition halls, meeting rooms and a lecture theater, was built by The Future of Meetings, an international collaboration working to make meetings more sustainable and accessible.

I was initially a little trepidatious about attending the conference in VR. I’m a VR skeptic, having worked as a video games journalist and seen the up-and-down (mostly down) hype surrounding this technology. But as a space tragic and someone who stood on top of a dirt hill in Coober Pedy, Australia as samples from Ryugu came hurtling back to Earth in 2020, I would also describe myself as bloody excited to stand on an asteroid.

So, during the conference, I booted up Spatial, ran my avatar through the Exhibition Hall and plunged him through a portal to Ryugu and the spacecraft that visited it in 2018. It kind of felt like I was playing Super Mario 64 and had jumped through a portrait.

Immediately, I dropped onto the surface of the asteroid. The Ryugu model was created by OmniScope, a start-up founded by astronomer Sasha Kaurov to create virtual worlds for science outreach, using real imagery captured by Hayabusa2. It isn’t a perfect replica but it certainly recapitulates the area surrounding the spacecraft’s landing zone — the shadowy plain that provided JAXA with a spot to touchdown and grab material back in 2019.

(Image credit: Jackson Ryan)

Elizabeth Tasker, a professor at JAXA and part of the agency’s outreach team, noted that it’s hard to establish whether the topology of Ryugu is to scale. However, she said, the models of Hayabusa2, as well as its lander and rovers, are to scale.

There’s not a lot to do in Ryugu World except marvel at the space, but that’s kind of the point. This isn’t a video game. It’s a tool. Particularly in space and planetary science, the appeal is obvious: Using data and real-world observations, we can visit places we will never be able to reach physically.

Tasker conducted a tour of the exhibit in Spatial during the ASA meeting, and pointed out particular aspects of the Hayabusa2 spacecraft — features that wouldn’t be quite as simple when presented in a PowerPoint slide. The digital 3D model provides a way to get up-close with the spacecraft and examine finer details, such as where its target markers and small carry-on impactor were stored during operation.

The Ryugu surface is not a complete asteroid, though. You can’t walk from one side to the other.

(Image credit: Jackson Ryan)

“I did mention at the end of the tour that it was possible (and quite easy in the low gravity environment) to run off the end of the asteroid scene and fall into space,” Tasker said. “This was supposed to be a warning, but promptly resulted in at least one person heading for their (virtual) demise! Fortunately, after falling for a short time, you are reborn back on the asteroid surface.”

(Image credit: Jackson Ryan)

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Standing on the VR surface of an asteroid, something happens in your brain that makes the experience sticky. I’ve written more words about Ryugu’s surface, its chemistry and importance in planetary science than most, but being able to stand on it, even digitally, provided a real “oh, damn” moment — an appreciation of the difficulty in landing on a tiny rock, floating millions of miles from the Earth.

Of course, when I was finished, I jumped off the edge.

 

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‘Big Sam’: Paleontologists unearth giant skull of Pachyrhinosaurus in Alberta

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It’s a dinosaur that roamed Alberta’s badlands more than 70 million years ago, sporting a big, bumpy, bony head the size of a baby elephant.

On Wednesday, paleontologists near Grande Prairie pulled its 272-kilogram skull from the ground.

They call it “Big Sam.”

The adult Pachyrhinosaurus is the second plant-eating dinosaur to be unearthed from a dense bonebed belonging to a herd that died together on the edge of a valley that now sits 450 kilometres northwest of Edmonton.

It didn’t die alone.

“We have hundreds of juvenile bones in the bonebed, so we know that there are many babies and some adults among all of the big adults,” Emily Bamforth, a paleontologist with the nearby Philip J. Currie Dinosaur Museum, said in an interview on the way to the dig site.

She described the horned Pachyrhinosaurus as “the smaller, older cousin of the triceratops.”

“This species of dinosaur is endemic to the Grand Prairie area, so it’s found here and nowhere else in the world. They are … kind of about the size of an Indian elephant and a rhino,” she added.

The head alone, she said, is about the size of a baby elephant.

The discovery was a long time coming.

The bonebed was first discovered by a high school teacher out for a walk about 50 years ago. It took the teacher a decade to get anyone from southern Alberta to come to take a look.

“At the time, sort of in the ’70s and ’80s, paleontology in northern Alberta was virtually unknown,” said Bamforth.

When paleontogists eventually got to the site, Bamforth said, they learned “it’s actually one of the densest dinosaur bonebeds in North America.”

“It contains about 100 to 300 bones per square metre,” she said.

Paleontologists have been at the site sporadically ever since, combing through bones belonging to turtles, dinosaurs and lizards. Sixteen years ago, they discovered a large skull of an approximately 30-year-old Pachyrhinosaurus, which is now at the museum.

About a year ago, they found the second adult: Big Sam.

Bamforth said both dinosaurs are believed to have been the elders in the herd.

“Their distinguishing feature is that, instead of having a horn on their nose like a triceratops, they had this big, bony bump called a boss. And they have big, bony bumps over their eyes as well,” she said.

“It makes them look a little strange. It’s the one dinosaur that if you find it, it’s the only possible thing it can be.”

The genders of the two adults are unknown.

Bamforth said the extraction was difficult because Big Sam was intertwined in a cluster of about 300 other bones.

The skull was found upside down, “as if the animal was lying on its back,” but was well preserved, she said.

She said the excavation process involved putting plaster on the skull and wooden planks around if for stability. From there, it was lifted out — very carefully — with a crane, and was to be shipped on a trolley to the museum for study.

“I have extracted skulls in the past. This is probably the biggest one I’ve ever done though,” said Bamforth.

“It’s pretty exciting.”

This report by The Canadian Press was first published Sept. 25, 2024.

The Canadian Press. All rights reserved.

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The ancient jar smashed by a 4-year-old is back on display at an Israeli museum after repair

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TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.

Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.

Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.

The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.

The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.

It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.

Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.

Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.

Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.

Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.

Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.

The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”

The Canadian Press. All rights reserved.

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B.C. sets up a panel on bear deaths, will review conservation officer training

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VICTORIA – The British Columbia government is partnering with a bear welfare group to reduce the number of bears being euthanized in the province.

Nicholas Scapillati, executive director of Grizzly Bear Foundation, said Monday that it comes after months-long discussions with the province on how to protect bears, with the goal to give the animals a “better and second chance at life in the wild.”

Scapillati said what’s exciting about the project is that the government is open to working with outside experts and the public.

“So, they’ll be working through Indigenous knowledge and scientific understanding, bringing in the latest techniques and training expertise from leading experts,” he said in an interview.

B.C. government data show conservation officers destroyed 603 black bears and 23 grizzly bears in 2023, while 154 black bears were killed by officers in the first six months of this year.

Scapillati said the group will publish a report with recommendations by next spring, while an independent oversight committee will be set up to review all bear encounters with conservation officers to provide advice to the government.

Environment Minister George Heyman said in a statement that they are looking for new ways to ensure conservation officers “have the trust of the communities they serve,” and the panel will make recommendations to enhance officer training and improve policies.

Lesley Fox, with the wildlife protection group The Fur-Bearers, said they’ve been calling for such a committee for decades.

“This move demonstrates the government is listening,” said Fox. “I suspect, because of the impending election, their listening skills are potentially a little sharper than they normally are.”

Fox said the partnership came from “a place of long frustration” as provincial conservation officers kill more than 500 black bears every year on average, and the public is “no longer tolerating this kind of approach.”

“I think that the conservation officer service and the B.C. government are aware they need to change, and certainly the public has been asking for it,” said Fox.

Fox said there’s a lot of optimism about the new partnership, but, as with any government, there will likely be a lot of red tape to get through.

“I think speed is going to be important, whether or not the committee has the ability to make change and make change relatively quickly without having to study an issue to death, ” said Fox.

This report by The Canadian Press was first published Sept. 9, 2024.

The Canadian Press. All rights reserved.

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