adplus-dvertising
Connect with us

Science

Artemis 2 astronaut Jeremy Hansen says a Canadian will walk on the moon one day

Published

 on

Canada’s Artemis 2 astronaut says his country is just getting started in lunar realms with his round-the-moon mission.

Jeremy Hansen was named Canada’s representative on Artemis 2 on on April 3, and within days the experienced test pilot found himself exploring new worlds as a result: speaking with Stephen Colbert, walking the red carpet at Guardians of the Galaxy Vol. 3, participating in an Indigenous vision quest, visiting policy-makers in Canada and the U.S., and carrying the flag at the coronation of Charles III.

After this work to connect with numerous communities touched by space, the Artemis 2 crew officially began training on May 15, studying the control systems and computers of the Orion spacecraft and other technical matters.

In a few months, however the training timeline “gets a little fuzzy” as this will be the first moon crew in a half-century. The crew is awaiting direction, as well as development of simulators and procedures, from senior management. “For developmental missions, that’s to be expected,” Hansen told Space.com in an exclusive interview.

Related: Jeremy Hansen: Artemis 2 Canadian astronaut will fly around the moon

But there are a few things Hansen is sure about for himself and his three crewmates, all NASA astronauts: commander Reid Wiseman, mission specialist Christina Koch, and pilot Victor Glover.

There will be geology training to prepare for looking at moon craters, potentially with Canadian crater expert Gordon Osinski — with whom Hansen recently discovered a rare Earth crater on a previous expedition. There also will be continued conversations with Canadian and American policy-makers to chart out the path after Artemis 2, Hansen emphasized.

“Eventually, you’ll see us doing amazing science and deep space,” Hansen said. “You’ll see a Canadian walk on the moon someday, and eventually go to Mars, because we have that ability to to do it in a way that brings benefits to Canadians.”

The Canadian Space Agency (CSA) has suggested that Canada will have seats on Artemis 4 and 6, which are both planned moon-landing missions slated to run around the end of the decade.

CSA’s director of space exploration development, Martin Bergeron, disclosed those early stage discussions at the Canadian Lunar Workshop in late May, according to SpaceQ. (The first landing mission, Artemis 3, may be in 2025 or 2026.)

Hansen has been with the CSA since 2009 and has not yet been granted a seat, as Canada’s International Space Station (ISS) contribution of 2.3 percent generally allows for a mission only every half decade or so. (Canada’s Chris Hadfield flew in 2012-13 on a mission assigned before Hansen was qualified for space, and then fellow 2009 astronaut class member David Saint-Jacques flew in 2018-19.)

But Hansen is known in the space community for helming high-profile projects, such as managing the training schedules of the entire 2017 astronaut class, and playing a lead role in the creation four tricky spacewalks to repair the Alpha Magnetic Spectrometer aboard the ISS.

Many in Canada therefore pegged Hansen as the logical choice to launch on Artemis 2, but he said that was not a sure thing until he received a phone call from CSA president Lisa Campbell about two weeks before the April 3 announcement.

“I’ve known for a while that was sort of the intent, where we thought things would end up, so I wasn’t completely surprised,” Hansen said of the assignment. “But on the other hand, you just never know. It depends on when a mission actually is going to end up going, and there’s always that uncertainty. We don’t decide any further in advance than when we have to, because it just takes away options.”

Canada received its seat due to its contribution of Canadarm3, a next generation robotic arm that will service NASA’s planned Gateway space station at the moon. Canada has paid for its seats through the Canadarm series since the dawn of the space shuttle program, and recently allocated even more space money for a mini-moon rover, a lunar utility vehicle and further moon research development.

The country, which has less than 40 million people spread across one of the biggest land spaces in the world, uses its small space budget to make strategic bets meant to pay off big. Robotics is one area, with space medicine, space food and artificial intelligence also seen as key investments for Canadian government.

Hansen emphasized this coalition work with NASA is important, not only for space opportunities but for the applications for remote environments on Earth.

“I’m really proud of this enormous team. I get to be the face of it for this mission, but it really reflects back on a huge team of people that made this possible,” Hansen said. “It’s Canada on the world stage. American leadership makes space for a country like Canada to shine, and bring our genius.”

Indeed, Canadians collaborated with NASA on moon exploration long before CSA was formed in March 1989. For example: A few dozen engineers of the cancelled Avro Arrow, a supersonic plane project, joined NASA in key roles as the agency was preparing human moon missions in the 1960s. Also, Canadian “legs” from company Devtek (today’s Héroux-Devtek) were used on the Apollo lunar lander during all human missions.

 

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