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The U.S. and Russia work together to rescue stranded astronauts

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As the U.S. and Russia are facing off over the invasion of Ukraine, the two adversary nations are quietly cooperating on another life-or-death matter: making sure astronauts are not stranded in space.

On Dec. 15, International Space Station mission control halted a planned spacewalk aboard the orbiting laboratory because of a startling new problem. A Russian Soyuz space capsule docked to the facility was suddenly spewing gobs of fluid into space. The dramatic leak, which saw a 0.8 millimeter hole empty the capsule’s radiator of cooling fluid, has left NASA and Russia’s Roscosmos space agency with a new problem — how to safely transport two cosmonauts and one astronaut who had been scheduled to return home in the now-damaged capsule in March. The capsule also functioned as the station’s emergency escape pod for those three, leaving them stranded if a serious problem develops in the station’s living quarters.

The situation — one of the more dangerous the ISS has faced in years — comes decades into the two nations’ long partnership running the station, which costs the U.S. $1.3 billion a year to operate. Yet despite the war in Ukraine dividing the two nations, the U.S. and Russia are working on solving the problem together, with a decision expected this month — reflecting three decades of interdependence at the ISS. Born of the end of the Cold War, the space station’s role as a geopolitical symbol of cooperation between the world’s most formidable nuclear powers has long outweighed its scientific achievements.

“Up to now, the White House explicitly has built a wall around ISS and space cooperation that kept it separate from the general pattern of U.S.-Russian relations,” said John Logsdon, a professor emeritus at George Washington University and founder of its Space Policy Institute. That was particularly true in the last decade, he added, when the U.S. relied solely on Russia to launch astronauts to the space station, until the first launch of SpaceX’s Dragon capsule in 2020.

“So there has been an explicit, but unstated and understood, policy that as long as Russia keeps up its part of the bargain in the partnership that we would not do anything influenced by external factors like Crimea or Ukraine.”

The busted Soyuz and potentially stranded spacefarers are just the latest episode in this long-running marriage of necessity.

“We have a crew member on this vehicle. And so, Roscosmos has reached out to us,” said NASA space station official Joel Montalbano in a December briefing for reporters. “The teams are going back and forth. We’re constantly exchanging data.”

“If we have some technical discussion among us or inside on the Russian side, then we share results of the discussion with our partners,” added Roscosmos’ Sergey Krikalev at the same briefing.

If the analysis, expected this month, concludes that a return trip on the damaged Soyuz would endanger the returnees, astronaut Frank Rubio and cosmonauts Dmitri Petelin and Sergey Prokopyev, Russia might have to send up an empty Soyuz capsule to bring them home instead sometime in February. NASA has also reached out to SpaceX about returning the astronauts home in a Dragon space capsule, which normally carries four astronauts but has the capacity for seven in an emergency.

“In space, you cooperate and come to each other’s aid, just like Antarctica or Mount Everest, even if on the ground you are practically at war,” said space journalist Keith Cowing of NASA Watch. “This is like a rescue at sea.”

Just like a car with a busted radiator, the Soyuz capsule will overheat with a radiator emptied of cooling fluid. The capsule now relies on air from the station for cooling, but closing its hatch saw temperatures inside rise to 104 degrees Fahrenheit. That’s even before sending it home to Earth on a reentry burn through the atmosphere, when temperatures inside would normally rise even with a functioning cooling system.

Most likely, the Russians will conclude they have to send an empty Soyuz capsule ahead of the March return mission to carry Rubio, Petelin and Prokopyev home, said Cowing. “In some ways, the Russians are even more conservative than we are, so that wouldn’t surprise me.” That will require rescheduling launches, experiments, crew rosters, spacewalks, maintenance and a host of other decisions aboard the orbiting lab, doubtless taking up a lot of planning time at the space agencies, he added. “It is a tribute to space cooperation that they can plan this, with everything else going on. Kind of a lesson for us on Earth.”

Orbital debris

A meteor shower passed by the space station on the day of the leak. However, its direction did not match the orientation of the hole in the Soyuz, said Krikalev, making it still a bit uncertain whether the leak’s cause was a space impact or a mechanical problem. Later camera work showed an exterior hole in the Soyuz about 4 millimeters across above the smaller hole in the radiator line. A micrometeorite that made such a hole would be too small to track and offer station managers warning it was coming, he added.

Traveling at 15,000 mile-per-hour “hypervelocity” orbital speeds, even a paint chip can blast holes in space station walls. More than 27,000 pieces of space junk, just the stuff big enough to be tracked by the Defense Department’s global Space Surveillance Network, litters the sky around Earth.

“Here’s the thing: The amount of stuff we launch is greater than the stuff that is reentering and burning up. So that means the amount of space traffic and space debris is increasing,” said astrodynamicist Moriba Jah of the University of Texas at Austin. “I’m amazed how infrequently we see these sort of things happening. I’d expect to see them.” Given increases in space debris in recent years, an impact from a tiny piece of space junk, (“something half the size of a bullet going 15 times faster than a bullet,” said Jah) wouldn’t be a surprising explanation for the Soyuz leak.

“We have to look at how well that system was shielded and how it was mitigated,” said Jah. “Humans just can’t think of everything that goes into one of these ‘random’ events ahead of time.”

Although the spew of fluid into space was impressive, Montalbano doubted whether the drops would cause problems for the structure of the space station. “It boils off very quickly. And so, we’re not concerned with any contaminants left on board,” he said.

In the 1990s, Soviet radar reconnaissance satellites leaked hundreds of inch-wide cooling liquid droplets some 370 to 620 miles above Earth — and the space station’s orbit. Whether the newer droplets from the Soyuz will coalesce to form a similar cloud of orbital debris to harry other satellites or the station is a “tricky problem,” said micrometeorite impact expert William Schonberg of the Missouri University of Science and Technology.

Most likely, the liquid will evaporate in orbit, said Schonberg, but without somehow running an experimental recreation of the event, “it’s going to be difficult to say whether or not any, some or most of the leaking coolant will remain in orbit and negatively affect those who encounter it next.”

The International Space Station has weathered hundreds of micrometeor strikes in more than two decades of operations, including ones on windows and solar panels. Heat-dissipating radiators on the station are hardened against such strikes with fluid lines buried under shielding. The leading face of the station is at particular risk for micrometeorite impacts as it circles the Earth once every 90 minutes, traveling at 5 miles per second.

Marriage of necessity

The Soyuz leak comes amid heightened concerns about orbital debris tied to Russia conducting an antisatellite missile test last year, blowing up one of their own derelict spy satellites. The blast, called “reckless and dangerous” by NASA Administrator Bill Nelson, left at least 1,500 trackable fragments in orbit.

“If the coolant leak turns out to have come from the debris created by that Russian antisatellite test, it wouldn’t surprise me,” said Jah. “Mother Nature is going to show us the unintended consequences of our actions. That could be the real point of this event.”

Even earlier in 2018, a drill hole in a Soyuz aboard the space station, apparently made before its launch, raised tensions between the U.S. and Russia. A Russian space official claimed an astronaut had made the hole in a bid to return home early, a claim dismissed by NASA officials. The hole was filled with epoxy.

Such increasing tensions, with repeated Russian claims of backing out of the station, have withered away any official interest in a continued space partnership, even without the war in Ukraine. NASA has committed to continue operating the space station through 2030. Built of a combination of U.S., Russian and international parts, the orbiting lab has quietly set endurance records for human life in space and set a medical baseline for future moon or Mars explorers.

“It was back in the 1990s, a marriage of necessity,” said Logsdon. Russia needed the space station partnership to sustain its human space program at the end of the Cold War. NASA meanwhile needed the Russian buy-in to make geopolitics a selling point for the orbiting lab. “But it was a multi-decade undertaking, so you have to live with the consequences of past decisions,” said Logsdon. “I don’t think there is a chance of a follow-on intimate partnership along these lines now.”

Thanks to Lillian Barkley for copy editing this article.

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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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