Private Peregrine moon lander failure won't stop NASA's ambitious commercial lunar program | Canada News Media
Connect with us

Science

Private Peregrine moon lander failure won’t stop NASA’s ambitious commercial lunar program

Published

 on

NEW ORLEANS — It was only two days ago when Peregrine, the inaugural private lander contracted under NASA’s Commercial Lunar Payload Services program, brilliantly blasted toward space aboard the first private flight of United Launch Alliance’s Vulcan rocket.

Mere hours into the journey, Peregrine started to fail.

Astrobotic, the company behind the spacecraft, continues to provide updates on how Peregrine seems to be faring post-anomaly; the struggling craft even provided a photo for scientists to analyze while figuring out what to do. Honestly, things aren’t looking great for the lander, and Astobotic has confirmed it won’t be making a soft touchdown on the lunar surface.

However, the morning after Peregrine’s downfall began, the ultimate purpose of CLPS seemed to shine through during astrophysicist Jack Burns‘ earnestly optimistic presentation at the American Astronomical Society’s 243rd meeting. Though of course disappointed while looking back at the failure of the first official CLPS mission, Burns, a professor emeritus in the Department of Astrophysical and Planetary Sciences and in the Department of Physics at the University of Colorado Boulder, makes a point to simultaneously look forward to what will soon be the second mission. The attempt is scheduled for February, and Peregrine’s setback isn’t expected to change that.

“We saw the first launch yesterday of Astrobotic,” Burns said during the presentation. “Unfortunately, it’s had some propulsion problems and is leaking some fuel, so we’re not sure it’s going to be able to make it onto the surface. But, it’s going to be followed next month by a second spacecraft: A lander built by the Intuitive Machines company.”

That lander, dubbed Nova-C, will launch atop a SpaceX Falcon 9 rocket to shuttle six NASA payloads to the lunar surface — one of which Burns is involved with. It’s called ROLSES, which stands for Radio Wave Observations on the Lunar Surface of the photoElectron Sheath, and it’s absolutely fascinating. But beyond simply getting pumped for CLPS’ next try and detailing the bright promise of ROLSES, Burns emphasized that this second go will actually demonstrate the key point of NASA’s commercial endeavor. “It’s not a one shot deal,” he told Space.com.

The whole reason NASA started the CLPS program is because it wanted a cheaper, more efficient way to bring easier-to-replicate scientific payloads to space. “If, heaven forbid, the James Webb Space Telescope did not deploy, we really would be stuck,” Burns said of the monumental $10 billion observatory currently locked into position on the side of Earth that never faces the sun. CLPS, meanwhile, offers a means of distributing risks and costs among many landers and missions. “The idea behind the CLPS program is for rapid acquisition and delivery of services,” he said.

If private companies can supply a rocket and lander for the agency, NASA scientists can essentially be paying customers and toss on a few experiments. Non-NASA scientists can do so, too. And though the apparent failure of Peregrine has understandably called into question whether NASA’s CLPS concept is a little undercooked, Burns further remarked that Astrobiotic’s story doesn’t end with Peregrine either. “They’ve got another shot,” he said. “They’ve got multiple shots, and even another mission coming up in about a year.”

Still, he says, “we’re friends with all the folks working on Peregrine and Astrobotic and so we were there rooting for them to be successful. So, we’re heartbroken.”

What is ROLSES?

In short, Burns says the far side of the moon is the best spot from which to do radio astronomy — or as he puts it, “it’s the only truly radio-quiet place in the inner solar system.”

Like its name suggests, radio astronomy involves studying things happening in space through radio frequencies emitted by the sources of those things. So, naturally, you wouldn’t want any non-source radio signals interfering with the delicate signals you’re trying to zero-in on. And Earth causes some radio interference of its own. But if you place a radio telescope on the far side of the moon (the area of the lunar surface always hidden to our planet), any radio interference emanating from Earth would get blocked out by the moon’s thousands of miles of rock itself.

The moon also lacks a significant ionosphere, or atmospheric layer where lots of zippy particles hang out and risk radio interference. Earth’s ionosphere is full of those particles.

“The other part that maybe isn’t appreciated as well,” Burns said, “is the radio beams for these instruments couple electromagnetically with the subsurface conditions that happen on the Earth, and happen on the moon.” This is problematic on Earth because soil moisture, for example, can change what’s known as the “dielectric constant,” or the ability of an insulating material to store electrical energy, from one day to the next. “That’s not true on the moon,” Burns said. “It’s stable and very dry.”

Alas, radio astronomy on the moon (particularly the far side), he argues, is a terrific idea. And he’s not alone. Several scientists throughout the Jan. 9 portion of the meeting brought blueprints for their ideas on how to start building science observatories on our beloved celestial companion. Ethicists and policymakers are considering how to manage such a future as well.

Specifically, ROLSES will actually be targeting a landing site near the moon’s south pole region in a small crater that’s only about 10 degrees from the actual southern pole. “This will be the closest anyone has gotten to the south pole,” Burns said. “The Indian Space Agency landed there with Chandrayaan-3 three about 30 degrees away, so we’re just creeping in towards the south pole.

“It’s not quite the pristine radio-quiet environment, but it’s a good place for us to start making operations from the moon.”

In terms of the far side, the team says they’ll certainly be getting there eventually. A mission named “LuSEE-Night” will travel to the neutral, pockmarked spot on the lunar surface (yes, it looks nothing like the grayscale watercolor side we can see from our planet) someday. That day could come as soon as 2026 if all goes to plan, when LuSee-Night is scheduled to launch aboard Firefly Aerospace’s forthcoming “Blue Ghost” lander.

“The ‘at night’ comes from the fact that we’re gonna need 40 kilograms [88 lbs] of batteries. We’ll be able to not only survive, but actually operate at night on the moon.” This bit is quite interesting as moon rovers and landers are known to die during long, frosty lunar nights. India’s Chandrayaan-3 components, for instance, amazingly landed near the moon’s south pole last year but sadly did not wake up after the frigid stretch. Space enthusiasts everywhere were crushed, even though it was a bit of a pipe dream to believe they’d survive.

The future of lunar radio astronomy

“The CLPS program is intended to be a high-risk high-reward program. We see some of the risk already with Astrobotic,” Burns said. “With the ROLSES payload, the thing that’s nice about this is we’ll be landing two to three of these payloads per year.”

To that end, NASA has already approved the flight of an upgraded version of ROLSES for 2026. For now, “we have a total of 2.5 meter monopole telescopes that we will be operating and we have two bands — a low band and a high band — and ranges all the way to 10 kilohertz for plasma observations up to 30 megahertz for astrophysical observations,” Burns said. Measuring at those frequencies from the spot in which the contraption will land would mark a first on that front. ROLSES will also be doing things like studying the density of the photoelectron sheath on the moon, associated with photomissions from the lunar regolith (pretty much moon dirt) that seem to pile up. Hopefully, that’ll help scientists know what astronauts headed to the lunar surface may experience in the offworld environment.

One of the payloads accompanying ROLSES on Nova-C is also actually a pair of CubeSats that’ll be ejected during the lander’s descent, will turn back around and take images of the lander going towards the surface. “That will be seriously cool,” Burns said. “That will give us a view of the lander coming down on the surface for the first time.”

RELATED STORIES:

Early on during the presentation (ironically around when my phone started buzzing with Peregrine failure updates) Burns pulled up a video of the iconic Arthur C. Clarke during his presentation. It was a snippet of an interview in which Clarke discusses — believe it or not — radio astronomy on the moon.

“Particularly on the far side of the moon, shielded from the electronic racket of the earth by 2000 miles of rock, there is an ideal site for radio astronomy telescopes,” Clarke says in the black and white footage, “and I think that in a few generations, almost all serious astronomy will be conducted either on the moon or in space.”

“It’s now been a few generations,” Burns said immediately after the clip ended.

“We’re there.”

 

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

Exit mobile version