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Team successfully observes Australian eclipse in preparation for 2024 US eclipse

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The April 20 eclipse observations served as preparation for the Citizen Continental-America Telescopic Eclipse (CATE) experiment ahead of a total solar eclipse that will traverse the continental U.S. next year, on April 8, 2024. CATE 2024 will use a network of 35 citizen scientist teams stationed along the path to make a continuous 60-minute high-resolution movie of the eclipse. Credit: SwRI/Citizen CATE 2024/Dan Seaton

Scientists from Southwest Research Institute (SwRI) led a team in the unique Citizen Continental-America Telescopic Eclipse (CATE) experiment to image the Sun’s outer atmosphere, the corona, during a short solar eclipse on the opposite side of the Earth. Using four platforms in the northwest corner of Australia, the team successfully observed the million-degree solar corona at the April 20 eclipse viewed from the Exmouth peninsula. The Australian eclipse serves both as a unique scientific opportunity and a training exercise for the program’s leadership in preparation for the 2024 U.S. eclipse.

The CATE 2024 team traveled nearly 10,000 miles for one minute of totality to observe the Sun’s corona from the unique perspective offered by . These phenomena allow scientists to view the complex and dynamic outer atmosphere in ways that aren’t possible or practical by any other means, opening new windows into our understanding of the solar corona. SwRI is leading the Citizen CATE 2024 experiment, a broad scientific outreach initiative that will make a continuous 60-minute high-resolution movie during the April 8, 2024, solar eclipse over the United States. CATE 2024 will use a network of 35 teams of scientists representing the local communities within the eclipse shadow path.

“Even though this was a very short eclipse, our team of community scientists performed flawlessly and captured fabulous images of the structure of the elusive ,” said Dr. Amir Caspi, a principal scientist at SwRI in Boulder, Colorado, and leader of the CATE 2024 project.

The observations obtained by the team will allow scientists to study the complexities of the Sun’s corona including its complicated shape, how it changes over time, or what causes the corona to reach temperatures of millions of degrees Fahrenheit. Today’s images from Australia will also help the team to refine its experimental procedures for the immense, distributed community effort in the United States next year.

SwRI-led team successfully observes Australian eclipse in preparation for 2024 US eclipse
A team of researchers from SwRI, NSO, NCAR, the University of Northern Colorado, Rice University, the University of Indiana, and the University of Maine observed a rare hybrid eclipse April 20 from four platforms in the Exmouth Peninsula, as the eclipse tracked through parts of Australia and Indonesia. Credit: SwRI/Citizen CATE 2024/Dan Seaton

“This eclipse provided the perfect opportunity to test our equipment and procedures, and to train our community leaders for the next eclipse in 2024,” Caspi said. “When it comes to preparations for this kind of major effort, there’s no substitute for the real thing.”

The Citizen CATE 2024 project is led by SwRI, and includes the National Center for Atmospheric Research, the National Solar Observatory, the Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder, and the Space Science Institute. Beyond its scientific goals, the project aims to engage many unique and diverse communities along the eclipse path as an integral part of a major scientific research effort.

“Total solar eclipses provide wonderful opportunities to bring together the public and science,” said Dr. Carrie Black, program officer for the National Solar Observatory at the NSF Astronomical Sciences Division. “The Citizen CATE 2024 project leverages the public value of science to create a lasting educational impact for both the scientific and .”

“Citizen CATE is part of a growing family of NASA citizen science projects gearing up for the Heliophysics Big Year initiative in 2023-2024, inspiring joy and curiosity along with excellent participatory science opportunities,” said Dr. Elizabeth MacDonald, Citizen Science Strategic Working Group lead at NASA.

SwRI-led team successfully observes Australian eclipse in preparation for 2024 US eclipse
The Citizen CATE 2024 project produced this false color image of the solar corona during the 2023 total solar eclipse from Exmouth, Western Australia. The image combines two crossed polarization angles, indicated by color. Prominences, loops and streamers are easily visible in this high-resolution image. Credit: SwRI/Citizen CATE 2024/Dan Seaton

The current project builds on the experience of the first Citizen CATE experiment, which used 68 stations to observe the August 2017 total that crossed the entire continental United States. CATE 2024 expands the scientific objectives by measuring polarized light and engages with teams across the new eclipse path. Dr. Sarah Kovac, a 2017 CATE participant and now a postdoctoral researcher at SwRI, serves as project manager for CATE 2024.

“Participating in CATE as a young undergraduate inspired me to pursue a career in heliophysics,” said Kovac. “Seven years and one Ph.D. later, I get to be on the professional side of planning an eclipse expedition, and it’s beyond exciting to share this passion with the next generation of young scientists.”

The 2023 Australian observation effort includes team members from SwRI, NSO, NCAR, the University of Northern Colorado, Rice University, the University of Indiana, and the University of Maine.

The project will begin to recruit teams from eclipse path communities in Fall of 2023. Interested parties can find more information and a contact form on the ‘s website, https://eclipse.boulder.swri.edu.

For more information, visit https://www.swri.org/heliophysics.

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Team successfully observes Australian eclipse in preparation for 2024 US eclipse (2023, April 20)
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Here’s how Helene and other storms dumped a whopping 40 trillion gallons of rain on the South

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More than 40 trillion gallons of rain drenched the Southeast United States in the last week from Hurricane Helene and a run-of-the-mill rainstorm that sloshed in ahead of it — an unheard of amount of water that has stunned experts.

That’s enough to fill the Dallas Cowboys’ stadium 51,000 times, or Lake Tahoe just once. If it was concentrated just on the state of North Carolina that much water would be 3.5 feet deep (more than 1 meter). It’s enough to fill more than 60 million Olympic-size swimming pools.

“That’s an astronomical amount of precipitation,” said Ed Clark, head of the National Oceanic and Atmospheric Administration’s National Water Center in Tuscaloosa, Alabama. “I have not seen something in my 25 years of working at the weather service that is this geographically large of an extent and the sheer volume of water that fell from the sky.”

The flood damage from the rain is apocalyptic, meteorologists said. More than 100 people are dead, according to officials.

Private meteorologist Ryan Maue, a former NOAA chief scientist, calculated the amount of rain, using precipitation measurements made in 2.5-mile-by-2.5 mile grids as measured by satellites and ground observations. He came up with 40 trillion gallons through Sunday for the eastern United States, with 20 trillion gallons of that hitting just Georgia, Tennessee, the Carolinas and Florida from Hurricane Helene.

Clark did the calculations independently and said the 40 trillion gallon figure (151 trillion liters) is about right and, if anything, conservative. Maue said maybe 1 to 2 trillion more gallons of rain had fallen, much if it in Virginia, since his calculations.

Clark, who spends much of his work on issues of shrinking western water supplies, said to put the amount of rain in perspective, it’s more than twice the combined amount of water stored by two key Colorado River basin reservoirs: Lake Powell and Lake Mead.

Several meteorologists said this was a combination of two, maybe three storm systems. Before Helene struck, rain had fallen heavily for days because a low pressure system had “cut off” from the jet stream — which moves weather systems along west to east — and stalled over the Southeast. That funneled plenty of warm water from the Gulf of Mexico. And a storm that fell just short of named status parked along North Carolina’s Atlantic coast, dumping as much as 20 inches of rain, said North Carolina state climatologist Kathie Dello.

Then add Helene, one of the largest storms in the last couple decades and one that held plenty of rain because it was young and moved fast before it hit the Appalachians, said University of Albany hurricane expert Kristen Corbosiero.

“It was not just a perfect storm, but it was a combination of multiple storms that that led to the enormous amount of rain,” Maue said. “That collected at high elevation, we’re talking 3,000 to 6000 feet. And when you drop trillions of gallons on a mountain, that has to go down.”

The fact that these storms hit the mountains made everything worse, and not just because of runoff. The interaction between the mountains and the storm systems wrings more moisture out of the air, Clark, Maue and Corbosiero said.

North Carolina weather officials said their top measurement total was 31.33 inches in the tiny town of Busick. Mount Mitchell also got more than 2 feet of rainfall.

Before 2017’s Hurricane Harvey, “I said to our colleagues, you know, I never thought in my career that we would measure rainfall in feet,” Clark said. “And after Harvey, Florence, the more isolated events in eastern Kentucky, portions of South Dakota. We’re seeing events year in and year out where we are measuring rainfall in feet.”

Storms are getting wetter as the climate change s, said Corbosiero and Dello. A basic law of physics says the air holds nearly 4% more moisture for every degree Fahrenheit warmer (7% for every degree Celsius) and the world has warmed more than 2 degrees (1.2 degrees Celsius) since pre-industrial times.

Corbosiero said meteorologists are vigorously debating how much of Helene is due to worsening climate change and how much is random.

For Dello, the “fingerprints of climate change” were clear.

“We’ve seen tropical storm impacts in western North Carolina. But these storms are wetter and these storms are warmer. And there would have been a time when a tropical storm would have been heading toward North Carolina and would have caused some rain and some damage, but not apocalyptic destruction. ”

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Follow AP’s climate coverage at https://apnews.com/hub/climate

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Follow Seth Borenstein on Twitter at @borenbears

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Associated Press climate and environmental coverage receives support from several private foundations. See more about AP’s climate initiative here. The AP is solely responsible for all content.

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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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