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Life on Mars? Billion-year-old water found near Timmins could offer glimpse into the past – Toronto Star

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Scientists are hoping water found near Timmins, Ont., that is more than a billion years old can provide insight into the possibility that life once existed on Mars.

Dr. Barbara Sherwood Lollar, a University of Toronto geochemist, first found the ancient salt water 2.4 kilometres underground in Kidd Creek Mine in 2009.

It took Sherwood Lollar’s team four years to verify the age of the water. They then began sampling it for microscopic life. Four to five years later, they confirmed that microbes lived in the water.

The discovery “opened up our understanding of the frontiers of the planet,” the geochemist said.

Sherwood Lollar has been sampling water in mines across Canada, in southern Africa and northern Europe for about 34 years. She knew that mines had salty water and wanted to understand why.

She took the trip to the Kidd Creek Mine, which is about 24 kilometres north of Timmins, in search of water as old or older than water the scientist had found in South African gold mines between 2003 and 2011. Sherwood Lollar confirmed that water to be anywhere from tens of millions to hundreds of millions of years old.

The Kidd Creek sample was the first time particles of flowing water were verified to be more than a billion years old.

While miners have long known about the salty water, research into why it was salty “flew under the radar of the scientific community,” Sherwood Lollar said. In fact, most Canadian geologists working on the Canadian Shield weren’t aware of any water in the mines, said Sherwood Lollar. It wasn’t until the 1980s and ’90s that scientists began investigating.

Sherwood Lollar hypothesized the salinity was a product of chemical reactions between the water and rock over long periods of time. The resulting chemicals made the ancient water habitable and could indicate that life exists in it, in the form of rock-eating microbes, or chemolithotrophs, the geochemist thought.

The rocks in the Canadian Shield, the exposed portion of the continental crust underneath the majority of North America that makes up about half of Canada’s land mass, are some of the oldest on Earth, with most ranging from 2.7 to three billion years old.

The Earth is 4.5 billion years old, but the oldest rocks are usually not preserved because they have been destroyed over time, Sherwood Lollar said. The rock at Kidd Creek, however, is quite well-preserved, she said.

By 2019, Sherwood Lollar and her team confirmed the hypothesis that the life forms do, indeed, exist in the ancient water.

The rock-eating microbes can live deep within the Earth because they are not photosynthetic, and therefore, do not rely on the sun for energy, Sherwood Lollar said.

Discovering that the water at Kidd Creek was more than a billion years old led Sherwood Lollar’s team to compare it to Mars and other planets.

Organisms in ecosystems deep beneath the surface of the Earth could provide insight into life that may have existed under similar conditions on Mars, three or four billion years ago, she said.

“The big question is … could any signs of that life still be preserved in the subsurface of Mars, where water might still be in evidence?

“We know now that Mars is a cold, dry desert. Nothing’s living on the surface of Mars,” Sherwood Lollar said. “But early in its history, Mars had a much more habitable environment, or potentially habitable environment, similar to Earth.”

Sherwood Lollar’s team extracted various samples of the ancient water for research and teaching purposes. In 2019, she approached Ingenium’s National Museum of Science and Technology in Ottawa.

A conservation lab at the Ingenium Centre, next to the Museum of Science and Technology, now hosts a 60 millilitre sample of the ancient water, in a vial that can fit in the palm of a hand.

Rebecca Dallgoy, curator of natural resources and industrial technologies at Ingenium, said she feels “honoured, humbled and responsible,” for the water now under Ingenium’s stewardship.

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The sample is being kept at room temperature in a silicate glass vial to ensure it does not evaporate.

There are plans to house the sample at other facilities within the Ingenium Centre, such as the Digital Innovation Lab and Research Institute. There, the museum can host researchers and make the water available for digital projects.

“We mostly do research on the artifacts in our collection and on material culture and on relationships with visitors,” Dolgoy said. “We won’t be analyzing the water sample in the lab. It’s more of the interpretive possibilities and the meanings.”

Sherwood Lollar is excited about the timing of the Ingenium exhibit, “because it’s coming about right about the same time that we’re finally able to tell you something about the organisms that are living in that ancient water.”

The geochemist never predicted that she would find water so ancient at Kidd Creek.

“We expected to find something old, but as happens with science, sometimes it still manages to surprise you,” Sherwood Lollar said.

When her team learned the water was more than a billion years old, they took their time to retrieve more samples and run more tests, Sherwood Lollar said.

In fact, her team didn’t publish its first paper on the water until four years later, in 2013.

The scientists used nine factors to determine the water’s age, including the amount of noble gases present. Noble gases are highly unreactive, so they accumulate over time. In turn, the concentration indicates how long the water has been present, Sherwood Lollar said.

“We wanted to be so sure that we were getting this right because it was such a game changer,” Sherwood Lollar said. “It literally pushed back our understanding of how old flowing water could be.”

In 2019, Sherwood Lollar was named co-director of the Canadian Institute for Advanced Research program “Earth 4D — Subsurface Science and Exploration.”

The scientist will continue working with international partners to research the system found at the Kidd Creek Mine and whether or not it could exist elsewhere on Earth.

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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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