adplus-dvertising
Connect with us

Science

Russia’s lander crashing into the moon may signal another shift in the space race, experts say

Published

 on

A Russian spacecraft malfunctioned over the weekend, sending the vehicle crashing into the moon. The failed landing attempt has experts questioning the future of the country’s lunar exploration ambitions and the geopolitical dynamics that underpin modern space exploration efforts.

The spacecraft, Luna 25, lost contact with operators at Russia’s space agency, Roscosmos, on Saturday, August 19. By Sunday, the vehicle was declared dead.

Initial reports from the head of Roscosmos, Yury Borisov, indicate there was a problem with the vehicle’s engines, causing it to misfire as it attempted to adjust its orbit in the days before landing.

The failure was a major blow to the space agency’s ambitions. Russia had been seeking to prove that its civil space program, which analysts say has faced issues for decades, can still achieve the stunning feats it showcased during the 20th-century space race.

“Russia’s Cold War legacy will be just that — a legacy — unless they can actually do this themselves,” said Victoria Samson, the Washington office director for Secure World Foundation, a nonprofit that promotes the peaceful exploration of outer space.

Under the former Soviet Union, Russia managed to safely land seven spacecraft on the lunar surface, including the first-ever soft landing in 1966.

Borisov acknowledged that the Soviet successes of last century weren’t easily repeatable.

“We have to essentially master all the technologies all over again — of course, at a new technical level,” he said during an interview with Russian state media on Monday.

Borisov has offered assurance that Roscosmos can get back on track. He said the space agency will accelerate its next two moon missions: Luna 26 and Luna 27, which could give Roscosmos all the science it lost with the failure of Luna 25.

Still, space policy experts question whether the Russian government has the power or the will to make that happen, particularly as the country faces sanctions around the war in Ukraine and Roscosmos appears to be of diminishing importance to the Kremlin.

“Even if they said they were going to continue (the Luna program), that doesn’t necessarily mean anything at this point. And the question is: Can they continue? Do they have the capability to continue it?” said Robert Pearson, a former ambassador to Turkey, former director general of the U.S. Foreign Service, and a founding member of Duke University’s Space Diplomacy Lab.

The consequence of this failure, Pearson added, is that on the global stage, it raises the question of whether Russia is “seriously in the space race” at all.

A changing civil space landscape

Russia’s failed moon landing attempt comes amid a rush of other lunar exploration efforts, largely designed by countries that haven’t been seen as traditional space powers. Luna 25 was flying alongside India’s Chandrayaan-3 spacecraft, which will attempt to land on the moon as soon as Wednesday.

More than a dozen other countries also have plans for moon missions in the coming years, including the United States’ ambitious Artemis III, which could land astronauts on the lunar surface as soon as 2025.

“I think it … speaks to how much the cost of space exploration has dropped,” Samson said. “It’s still not cheap by any stretch of the imagination, but it’s gotten a little more reasonable. … I think that’s why more countries are able to (attempt) it.”

But while the loss of Luna 25 may widely be seen as a setback for Russia’s space ambitions, it’s worth noting that putting a spacecraft on the moon remains an exceedingly difficult feat.

India’s last attempt, with the Chandrayaan-2 spacecraft, failed. And two other commercial spacecraft have also crash-landed since 2019.

Perhaps different expectations were placed on Russia, however, because of its extensive Soviet-era experience.

India’s Chandrayaan-3 enters lunar orbit in step closer to moon rover soft landing

 

If India’s space agency manages to safely land its spacecraft, Pearson added, it could “really outline the loss of prestige and influence and technological ability on the part of Russia.”

The mission was also closely watched because of how the country’s civil space program has been evolving. In recent years, Roscosmos has been beleaguered by issues with funding, quality control issues and suspected corruption, Samson noted.

The space agency has also faced blowback from Western nations since Russia invaded Ukraine in February 2022. The European Space Agency, for example, was set to work with Roscosmos on the Luna 25 mission as well as several future exploration endeavors, but Europe pulled out of the partnership after the invasion of Ukraine.

Now, questions are swirling around how Russia’s closest modern space partner — China — might react to Luna 25’s failure.

The two countries had announced they would work together to establish the International Lunar Research Station, a moon base to rival plans by the US and its allies to create a permanent lunar outpost under NASA’s Artemis program.

Samson noted that China, which is so far the only country to soft-land spacecraft on the moon in the 21st century, has already been downplaying Russia’s role in the program.

“I’m sure China must be really wondering what they saddled themselves with” after the Luna 25 mission, Samson said.

Still, Samson and Pearson both noted that Russia continues to play a key role on the international stage. The country is the United States’ primary partner on the International Space Station, though Russia previously threatened to pull out of that operation. For years, Russia was also the only country capable of getting astronauts to and from the space station after NASA retired its space shuttle program. (Today, SpaceX has taken over that function for the US.)

Why missions like Luna 25 matter

The Luna 25 spacecraft was intended to land on the moon’s south pole. It’s the same region where India is aiming to put its Chandrayaan-3 lander and where NASA plans to put its astronauts as well as future robotic missions.

The widespread interest in the moon’s south pole can be attributed to one key feature: water ice. Scientists believe copious amounts of water are stored near the south pole, frozen solid in shadowy craters.

Water ice could be immensely valuable for the future of space exploration. The precious resource could be converted into rocket fuel for missions that explore deeper into the cosmos or turned into drinking water for astronauts on long-duration missions.

“That is really the big driver for why we need to head to the south pole — and they’re in sort of part of a ‘Space Race Part Two,’” said Dr. Angela Marusiak, an assistant research professor at the University of Arizona’s Lunar and Planetary Laboratory, in an August 18 interview.

Because orbital dynamics make the south pole difficult to reach, it hasn’t been as deeply explored as other areas. That gives Russia and every other nation with lunar ambitions a key reason to go: There is clear scientific — and strategic — interest.

China reveals how it plans to put astronauts on the moon by 2030

 

But Pearson questioned why Russia chose to head straight for the south pole for its first lunar mission in nearly 50 years.

“All they had to do was land (somewhere on the moon) and they would have shown the world that they were in the space race,” Pearson said of Russia. “They took a desperate measure — in my opinion — when they should have picked a safer option.”

Which countries reach the moon, and when, could have implications for how scientists make use of the data gathered.

Exactly how information sharing will work is not exactly clear.

India, for example, is a signatory of NASA’s Artemis Accords, a document mapping out agreed-upon rules for lunar exploration that includes a commitment to sharing scientific data.

Russia, on the other hand, is not a signatory.

But Samson cautioned against characterizing these lunar missions as a race, suggesting those involved are opponents. Though it’s difficult to know exactly what dynamics will arise, the moon is a big place — and there is room for everyone.

“My concern is that if we look at this in an aggressive, adversarial manner,” she said, “then we will generate the exact circumstance we’re trying to avoid.”

 

728x90x4

Source link

Continue Reading

News

Here’s how Helene and other storms dumped a whopping 40 trillion gallons of rain on the South

Published

 on

 

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. ”

___

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

___

Follow Seth Borenstein on Twitter at @borenbears

___

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.

Source link

Continue Reading

Science

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

Published

 on

 

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.

Source link

Continue Reading

News

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

Published

 on

 

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.

Source link

Continue Reading

Trending