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NASA readies for its 3rd attempt to launch rocket to the moon tomorrow morning – CBC News

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Here we go again. 

After two scrubbed launch attempts and two hurricanes that pounded the Space Coast, NASA is once again trying to get its giant moon rocket off the ground.

Artemis I, the first mission in NASA’s Artemis program that will return astronauts to the moon, is scheduled to liftoff on Wednesday at 1:04 a.m. ET, with a two-hour launch window. 

You can watch the launch here beginning at 12:30 a.m.

The Space Launch System is the space agency’s most powerful rocket ever built. Atop it sits the Orion spacecraft, which will one day ferry astronauts to and from the moon. The last time humans were on the moon was in December 1972.

This is an uncrewed mission, with the only passengers being three mannequins on board that are part of a few experiments, including testing a vest that will protect astronauts from lethal space radiation. 

Artemis II, set to launch in 2024, will carry four astronauts — including a Canadian — who will orbit the moon and return to Earth.

Artemis III, set to launch in 2025, will see humans once again on the surface of the moon.

But trying to get the Artemis mission up and going has been quite the challenge for NASA.

Originally, the rocket was supposed to launch on Aug. 29. However, the space agency encountered several issues that day, including a delay in loading the rocket’s propellant due to stormy weather. Then the two types of propellants — liquid oxygen and liquid hydrogen — weren’t loading at acceptable rates. Finally, one of the four rocket engines failed to cool down as expected, and eventually crews ran out of time in the launch window and were forced to scrub the launch.

A second launch attempt on Sept. 3 was also scrubbed due to fuel loading issues and a hydrogen leak.

Then came the hurricanes.

First, it was Hurricane Ian that forced NASA to roll the rocket back to the Vehicle Assembly Building. The hurricane made landfall from the Gulf of Mexico on Sept. 28 as a Category 4 storm and, though it did not cause extensive damage at the Kennedy Space Center, the space agency wanted to inspect the pad and allow its workers time to take care of themselves, which further delayed the launch.

Then there was Hurricane Nicole, which made landfall on Nov. 10 just south of the Kennedy Space Center as a Category 1 storm. NASA had rolled the rocket back to the launch pad on Nov. 4 for a launch on Nov. 14. Once Nicole had developed, however, it was too late to roll the 32-storey rocket back to the safety of the assembly building, so the rocket remained on the pad during the storm, and the launch date was moved to Nov. 16.

The rocket did experience some issues from being left in the storm.

One was some tearing of some thin caulking that surrounds Orion, which essentially fills in the gaps in the thicker insulation and prevents any air circulation or heating. There was concern that if more of it were to break off during launch, it could damage the rocket, potentially catastrophically. 

This image shows a close-up of the area where caulk on a seam between the Orion launch abort system’s ogive and crew module adapter detached during Hurricane Nicole. (NASA)

Another concern was the tail service mast umbilical. This 10-metre tall structure lies near the bottom of the rocket and consists of several lines that feed propellant and electricity to the core stage of the rocket. Engineers were receiving “inconsistent” data, even though they had replaced one of the connectors earlier. 

Ground crew can be seen at the base of NASA’s massive Space Launch Systemrocket, inspecting the tail service mast umbilical, left. In a media teleconference on Sunday, Mike Sarafin, mission manager for Artemis, said the area did ‘have a problem’ after Hurricane Nicole struck Florida last week. (Don Hladiuk)

Despite these issues, in a media teleconference on Monday evening, mission managers said they were confident that they could still fly.

“There’s no change in our plan to launch on the 16th,” said Artemis mission manager Mike Sarafin.  “In terms of the two issues that we reviewed … I would say we’re comfortable flying as is.”

The reasoning is that, for the mast umbilical, there are redundant systems in place. As for the caulking, they reviewed it and believe that no more would break off, and even if it did, there would be a low chance it would be a catastrophic risk to the rocket.

Sarafin noted that the same caulking was used in flight for the original test flight of the Orion spacecraft, and they did not see any issues of it detaching.

When it comes to the possibility of yet another leak during the propellant load, Jeremy Parsons, exploration ground systems program deputy manager at the Kennedy Space Center, said they aren’t concerned they will encounter the previous issues.

“We are more confident than we’ve ever been in our loading procedures,” he said.

The hours-long tanking will begin at 3:30 p.m. ET Tuesday. 

If the rocket launches Wednesday, Orion will have a 26-day mission to test multiple systems, including most importantly, a new heat shield that is designed to protect astronauts from heat as they re-enter the atmosphere at nearly 40,000 km/h.

This graphic shows the mission timeline for the uncrewed Artemis I mission. (NASA)

Overall, the feeling is positive at the space agency that they are ready to overcome any other challenges that may develop along the way. Parsons noted that the entire team has persevered through a lot trying to get Artemis to launch. 

Sarafin agreed.

“Our time is coming, and we hope that is on Wednesday,” Sarafin said. “But if Wednesday is not the right day, we will take that next hurdle, that next trial and persevere through that.”

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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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