‘It only makes the news when the toilets stop working’: has the 25-year-old International Space Station been a waste of space? | Canada News Media
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‘It only makes the news when the toilets stop working’: has the 25-year-old International Space Station been a waste of space?

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The International Space Station is about to pass a remarkable milestone. In November, the giant spacecraft will have been in orbit around our planet for a quarter of a century.

For the past 25 years, hundreds of astronauts have made temporary homes there while other visitors have included frogs, worms, shellfish and butterflies: each has been the subject of experiments aimed at uncovering the effects of weightlessness, radiation and other extraterrestrial phenomena on living creatures. In addition, astronauts have carried out studies of dark matter, cosmic rays and Earth’s ozone layers.

Yet the days of this 100-metre-long behemoth – which began on 20 November 1998 when its first segment, Russia’s Zarya module, was blasted into orbit – are now numbered. The station has already been operating for a decade longer than planned, and it is suffering more and more from air leaks, thruster failures and other mishaps that are intensified as it is heated and cooled 16 times a day while sweeping round the Earth at 17,500mph. Vibrations from spaceship dockings and crew movements are only adding to these woes, as well as its ageing – near obsolete – equipment.

As a result, Nasa has decreed that the ISS, which now consists of 16 pressurised modules, will be terminated and sent spiralling into the Pacific Ocean in 2031. The space agency insists the risks posed to humans by the 400-tonne craft striking our planet will be minimal. “Once the debris enters the ocean, it would be expected to settle to the ocean floor,” it says. “No substantial long-term impacts would be expected.”

The forthcoming destruction of the International Space Station raises key questions. Was it worth £120bn to build and operate? What have we have learned over the past 25 years that justifies this incredible outlay? What will replace it, and who will pick up the bill?

The first question is the most controversial. Many scientists point out that the ISS has provided invaluable insights on how to live and work in zero gravity, knowledge that will be crucial as humanity prepares to return to the moon and head off on long-duration trips to Mars and beyond. Thanks to the space station, we have learned that humans can make homes in outer space and that is a crucial lesson, they state.

Others disagree. They argue that the money spent on the ISS would have been better invested in different projects. In the 1990s, when planning of the ISS began, the US – the principal funder of the international station – was considering two major rival scientific projects. The first was the ISS. The second was a proposed particle accelerator, the Superconducting Super Collider. Both came with colossal pricetags, and the US Congress decided the nation could only afford to provide cash for one. Mainly for political reasons, it chose the ISS and axed funding for the super collider.

The decision left Europe free to build its own particle accelerator, the Large Hadron Collider (LHC), at Cern, in Geneva, where research has since garnered a host of Nobel prizes. By contrast, the US ended up with an “orbital turkey”, as the late US Nobel laureate physicist Steven Weinberg described the ISS. “The only real technology that the space station has produced concerns the technology of keeping humans alive in space – which is a senseless and circular process if you realise there is no point in having humans in space,” he argued.

This point is backed by the UK Astronomer Royal, Martin Rees. “The case for sending humans into space gets weaker and weaker every year as robots get cleverer and more sophisticated,” he told the Observer. “They can do the science and assemble large structures in space and are much, much cheaper to operate in space. We don’t need humans to do research in space.”

“Just look at the headlines,” Rees added. “The only time the ISS makes news is when its toilets stop working or an astronaut floats about with a guitar singing Space Oddity.”

Space stations are not about to disappear from the night sky, however. The ISS may be destined for termination in a few years, but the US, Europe, Japan, Canada and India have all revealed plans to launch and build new orbiting laboratories, while China has already constructed its own permanently crewed station, Tiangong. Now scheduled to outlive the ISS, Tiangong is set to be fitted with extra modules to double its current size in the near future.

For its part, the US – in partnership with Europe, Japan and Canada – is planning to build Gateway, a smaller version of the ISS which would then be put into orbit round the moon. The station would be visited by groups of astronauts, initially for weeks and then for months at a time. From there, they will direct robot craft that will explore the moon’s surface and help prepare for the construction of a permanent crewed base there.

However, it is the arrival of private entrepreneurs that is expected to transform the market, with one key player, the US-based company Axiom, making headlines last week from the announcement that it had reached agreement with the UK Space Agency to send four British astronauts on a two-week space station mission in the near future.

Axiom is scheduled to add four new segments – or habitats, as it calls them – to the ISS, with first launch scheduled for 2026, Michael Baine, the company’s chief engineer, told the Observer. “Each habitat will support four astronauts, who will be sponsored either by an individual nation or a private company, and they will do research and meaningful work in orbit.” This will not be a tourist venture, in other words.

Baine said its four modules would be launched on privately owned rockets, such as SpaceX’s Falcon Heavy launcher. Once put together at the station, the modules would later be detached as a single new space station prior to the ISS being de-orbited and sent to crash into the Pacific. The station would arise from the ashes of the old, in short.

“Each module is designed to last for 15 years or more, possibly 30 years, and we aim to increase capacity there considerably over the years,” added Baine.

“There are many biological and pharmacological products that can be made in space, as well as crystals, fibre optics and metallurgy. All have a strong potential revenue, and we are aiming to exploit that.”

Other private operations being backed by Nasa include US companies such as Orbital Reef and Starlab, with the former describing its planned space station as “a business park in space”.

“We see future space stations as being a combination of zero-gravity factories and research laboratories. That is the potential they offer,” added Baine.

 

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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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