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Further problems with Boeing's Starliner Capsule Revealed – Aeronautics Online

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Boeing’s space division seems to have made yet another blunder in relation to its Starliner capsule. Even though the capsule’s first mission (the Orbital Flight Test, or OFT) was already a failure due to a timer failure, another error has been found in the capsule’s software which could have destroyed the Starliner vehicle altogether. This has brought much more serious repercussions as it, if not discovered, could have resulted in the deaths of every astronaut onboard a future Starliner.

The OFT was supposed to be one of the last steps in Boeing’s development of the CST-100 ‘Starliner’, a new capsule developed under the Commercial Crew Development (otherwise known as CCDev) contract. This contract, issued by NASA, is aimed to minimize development costs through private investment and development, and actually includes two space transportation vehicles; the first is the previously mentioned Starliner, while the other is SpaceX’s Crew Dragon. By doing this, NASA hoped to provide redundancy both in regards to development and flight operations.

A image from SpaceX’s completely successful (and pretty explosive) In-Flight Abort Demonstration (Credit to SpaceX)

SpaceX has recently achieved enormous success with both a stunningly successful orbital flight test (known as Demo-1, but essentially the same as the Starliner’s OFT) and in-flight abort test, which has proved that the vehicle is safe and able to fly. However, Crew Dragon was delayed by an explosive ground test failure, which resulted in the obliteration of the capsule used for Demo-1. Thankfully, no-one was injured, but SpaceX still had to make an official investigation into the failure and fix the underlying issue (a leaky valve).

However, Starliner has run into similar issues with little success. Its abort test, while successful, still had a parachute fail on its descent. A test of the capsule’s service module resulted in a leak of the module’s toxic fuel, delaying the OFT by months. Last, a Mission Elapsed Timer failure on the OFT itself led to a planned rendezvous with the ISS becoming impossible, thereby failing the mission. But all these mistakes and accidents were without people at serious risk, or at least could have posed little risk to the lives of astronauts. (Boeing previously claimed that astronauts could have prevented the OFT’s failure, and allowed for an ISS rendezvous.)

This latest blunder is far more serious, as is displayed by NASA Administrator Jim Bridenstine’s actions, which were to hold a media teleconference detailing some of the Starliner’s issues before NASA and Boeing’s investigative review team had finished their assessment of the flight. Bridenstine explained his actions by saying that he hosted the conference in the “interest of transparency”, thanks to the OFT having “lots of anomalies”.

However, it seems that NASA is more concerned about the culture of Boeing’s software development, as Doug Loverro, the head of NASA’s human spaceflight section, stated that the software anomalies were “likely only symptoms…we had numerous process escapes in the design, development, [and] test cycle for software…We have a more fundamental problem…” This is highly worrying, especially when considering Boeing’s disastrous software failures with the Maneuvering Characteristics Augmentation System (MCAS) system on the Boeing 737, which have claimed 346 lives on two separate flights. Clearly, this is also at the top of NASA’s mind.

A diagram of the CST-100 Starliner (Credit to Boeing)

The anomaly in question pertains to the Starliner’s Service Module disposal sequence, which requires that it fire several thrusters to move away from the crew module just before reentry. However, during the OFT, a software check was performed following the Starliner’s malfunction during orbital insertion. This check discovered that the service module’s code was sub-par, and could have led to it colliding with the crew module. The reason as to why the code was sub-par apparently lies in the difference of whether the crew module was attached to the service module or not. The differences would require a “different valve mapping”, however, there were no differences between the scenarios. Basically, the service module’s thruster firings would have acted as if the crew module was still there.

These improper thruster firings could have been dangerous, as said by Boeing’s Senior Vice President, Jim Chilton; “It can’t be good when two spacecraft are going to contact.” In fact, in the words of NASA’s Aerospace Safety Advisory Panel member Paul Hill, the anomaly had “the potential for catastrophic spacecraft failure”. This should be taken incredibly seriously, as such an anomaly could kill every person onboard the spacecraft through either damage to the heatshield or structural damage to the capsule.

Another problem encountered was with the space-to-ground communications. During the initial stages of the flight, communications with the capsule were spotty, which had an immediate impact on the ground control team’s ability to fix Starliner’s failure during orbital insertion. This was apparently due to a “high [radio] noise floor”, which prevented the ground from contacting NASA’s Tracking Data and Relay Satellites (TDRS), which would then contact Starliner. This ‘high noise floor’ has been attributed to nearby cell phone towers.

Musk previously smoked marijuana during a podcast interview, a legal act, but nonetheless worrying to NASA (Sourced from Youtube)

As a result of these extensive failures, NASA has ordered an Organizational Safety Assessment of Boeing’s work on the CCDev contract, similar to that which SpaceX went under following its CEO, Elon Musk, smoking marijuana during an interview. NASA had previously ordered a more limited review of Boeing, but they are obviously determined to avoid any future issues.

This investigation is more focused on how the numerous software issues managing to slip their way through safety checks that “should or could have uncovered the defects”. However, NASA has also shouldered some of the blame, with Loverro stating that “Our NASA oversight was insufficient. That’s obvious. We recognize that. I think that’s good learning for us.”

It is encouraging to see that NASA is clearly thinking about its role in the Starliner OFT’s failure, but this comes at the tail end of a series of failures by Boeing. Its reputation in air and space, while previously unchallenged, has fallen drastically thanks to the numerous accidents or mishaps with CCDev, the 737 Max and SLS. Boeing’s actions have resulted in widespread outrage, and other companies are rapidly exploiting the lack of trust or goodwill remaining for the brand. Boeing will have to tread carefully in the following weeks, as both they and NASA decide what to do following this latest failure.

Crew Dragon on the left, Starliner on the right (Credit to NASA)

It remains to be seen whether the next test will be crewed, or if it will just be a repeat of the failed OFT. However, SpaceX has almost certainly won the race to develop NASA’s next spaceflight system.

Featured image from Boeing

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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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