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No, a piece of the sun didn’t just ‘break off’

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You may have seen stories over the past week or so with headlines like, “Part of the sun breaks free and forms a strange vortex, baffling scientists,” or “Unbelievable moment a piece of the sun BREAKS OFF baffles scientists” or even “NASA captures piece of sun breaking off, baffles scientists.”

It all started with a harmless, informative tweet.

Tamitha Skov, a space weather forecaster and science communicator, tweeted her excitement that “material from a northern prominence just broke away from the main filament.”

“Implications for understanding the sun’s atmospheric dynamics above 55° here cannot be overstated!”

But are scientists actually baffled?

Tamitha Skov laughs.

“No,” she said.

Instead, they’re fascinated.

“The thing is, that first of all, scientists should be allowed to be curious and get excited about things they don’t fully understand. Otherwise, what’s the job of a scientist?”

Heliophysics — the study of the sun — is a fairly young branch of astronomy, Skov notes, which is why when something different happens on our nearest star, scientists get excited.

The eight-hour event started off with a solar prominence (also known as a solar filament), that began to rise up near the north pole of the sun, which is seen at the top in satellite images. Prominences are made up of plasma, a hot gas of electrically charged hydrogen and helium. They are common on the sun, but it was the location of this one — at the sun’s north pole — that was of particular interest to heliophysicists.

“What ended up happening was something that started off as a very normal, average, what we call a polar crown filament. It became this kind of big tower, like a big volcano that was beginning to rise up near the very northern pole,” Skov explained.

The prominence was near the top of the north pole, above 60 degrees latitude where it got caught in an electromagnetic wind.

A solar filament is seen stretching across the sun from approximately the 7 o’clock position and winding up towards the 3 o’clock position. (NASA/SDO)

“And it began to yank and pull at some of the material in that prominence,” Skov said.

“So it was rising like a hot air balloon, so to speak, up in the air. And as it cooled, instead of just cooling back down and falling, or perhaps erupting, like a normal polar crown filament, part of it got ripped off in this wind. And as it shredded off into this wind, we got to watch it cool down, swirl in a vortex. And that is a very rare, if not, fundamentally new observation.”

Understanding the sun

The sun is a complicated beast. It is constantly active and is highly magnetic. Unlike Earth, different parts rotate at different speeds. It also goes through an 11-year cycle of waning and waxing activity, called solar minimums and solar maximums, respectively (we are at the start of a solar maximum, part of solar cycle 25).

A satellite image shows the sun with lines wrapping around it, illustrating the sun's magnetic field lines.
NASA’s Solar Dynamics Observatory (SDO) scientists used their computer models to generate a view of the sun’s magnetic fields on Aug. 10, 2018. The bright active region right at the central area of the sun shows a concentration of field lines, which represent different magnetic fields, as well as the small active region at the sun’s right edge. (NASA/SDO)

“Polar magnetic fields, they vary in different ways,” said Liz Jensen, associate research scientist at the Planetary Institute. “So one of the things that happens is that with the solar cycle … it’ll flip the magnetic field.”

“So the likelihood of having a prominence increases, the closer you get to solar max.”

Skov explains that areas of non-charged particles, which are considered neutral, get twisted up by the magnetic fields and then travel to the poles.

And this may be the explanation for what scientists observed: a possible indication that the polarities may be starting to flip. That’s what made it so exciting for them; even as our knowledge about the sun is expanding — with more and more satellites devoted to studying it — it still manages to surprise heliophysicists.

So scientists weren’t baffled, since they already had some knowledge about this type of activity. But they were thrilled to be able to witness it.

“It’s like a lot of problems in nature,” Jensen said. “As you get better at understanding one aspect of it, you realize just how challenging it is in other areas. And so, you know, you collect a measurement that answers one of your questions and it raises 10 others.”

Beyond the headlines

Skov says she was surprised at what part of her tweet ended up going viral.

“I actually train meteorologists to understand … how space is kind of incorporated into our pop culture. And the sad thing about it is that it’s always incorporated in the wrong way. It’s always going to be this phenomenally scary and fundamentally hostile universe where everything that could break will,” she said.

While discussing it in her class, she says they thought the mention of polar vortex would garner the most attention, particularly as one had descended across North America. But she was wrong.

“Lo and behold, it ended up not being polar vortex that went viral. It was me saying that a part of the prominence material broke away from the main structure,” she said. “It’s like none of us saw that coming — not even me — and I’ve been doing this for a decade.”

When asked if she regrets sending the tweet, as it led to misunderstandings, Skov says she doesn’t.

“It’s a matter of turning that into a teachable moment, into lessons learned, and in to a way that people can actually come back and and realize that, okay, the headlines just blow things out of proportion.”

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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.”

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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.

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