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India's Moon Shot Adds to Country's Growing Space Endeavors – Space Ref

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Chandrayaan-3 lunar lander and rover outfitted to its propulsion module.

Image credit: ISRO.

India’s ambitious Moon exploration spacecraft, the Chandrayaan-3, is now en route to its lunar target, following a successful burn this week. The lander is to unleash a rover, which like the lander itself is stuffed with scientific instruments to inspect the lunar surface in the southern lunar hemisphere.

A powerful GSLV MkIII booster roared skyward on July 14 from the Satish Dhawan Space Center, Sriharikota, hurling Chandrayaan-3 into Earth orbit. The craft first carried out a series of orbit-raising maneuvers around the Earth. Those propulsive nudges led to the critical August 1 engine burn that placed the vehicle on a journey toward its celestial destination.

“Next stop: the Moon,” declared an internet posting from the Indian Space Research Organization (ISRO). All appears on track for the Chandrayaan-3 to swing into lunar orbit on August 5. The probe’s propulsion module will place the lander/rover into a circular polar lunar orbit and then detach.

India’s lander will then head for a touchdown on August 23 within the southern region of the Moon’s near side, soft landing about 13 miles (20 kilometers) west of the Manzinus U crater rim.

Elite group

This is not India’s first Moon landing attempt.

In fact, the Chandrayaan-2 orbiter is currently circuiting the Moon, left there following a failed try to reconnoiter the Moon with a lander and rover back in September 2019. After being cast off from the orbiter, the descent of the lander went well. But communication with the vehicle was lost as the craft augured into the barren lunar scenery.

This time, given a safe and sound touchdown on the Moon, India would join an elite group of successful lunar landing countries: the former Soviet Union (now Russia), the United States, and China.

Following separation of the lander module, the propulsion module is to run a Spectro-polarimetry of Habitable Planet Earth (SHAPE) payload, an experiment that will study the Earth from lunar orbit.

Also, the Chandrayaan-3 propulsion module is to remain in orbit around the Moon, serving as a communications relay satellite.

Once down on the Moon, the lander and rover are designed to operate for one lunar daylight period (about 14 Earth days).

Moon manifest

Both the Chandrayaan-3 lander and rover are loaded with scientific gear.

A tiny Moon rover is to be dispatched from the Chandrayaan-3 lunar lander. Image credit: ISRO.

Moon lander payloads: Chandra’s Surface Thermophysical Experiment (ChaSTE) to measure the thermal conductivity and temperature; Instrument for Lunar Seismic Activity (ILSA) for measuring the seismicity around the landing site; Langmuir Probe (LP) to estimate the plasma density and its variations. A passive Laser Retroreflector Array (LRA) attached to the lander was provided by NASA.

Moon rover payloads: Alpha Particle X-ray Spectrometer (APXS) and Laser Induced Breakdown Spectroscope (LIBS) to judge the elemental composition of lunar materials in the vicinity of landing site.

Thanks to the NASA-supplied LRA, which NASA Goddard Space Flight Center researcher Daniel Cremons told SpaceRef is mounted atop the lander, specialists will be able to precisely determine the lander’s location on the Moon.

An LRA consists of eight tiny retroreflectors affixed to a hemispherical platform. The total mass of the LRA is just 20 grams, and it requires no power. The device, when struck by laser light, reflects the light back to its source to reveal its location.

LRAs can be used as precision landmarks for guidance and navigation during the lunar day or night. In the future, by placing a few LRAs around a specific site they can guide arriving robotic or human-carrying landers to a safe, pinpoint landing.

NASA-supplied laser retroreflector array is mounted atop India’s lunar lander. The device can help precisely pinpoint the whereabouts of a Moon lander. Image credit: ISRO/NASA.

However, in this case, the ultra-small LRA is too small to capture a laser pulse shot from Earth. Instead, it was fabricated to reflect laser light from a laser altimeter or Light Detection and Ranging (LIDAR) equipment on a spacecraft orbiting the Moon or landing on the Moon.

Cremons said that the NASA LRA project office is also supplying similar devices for NASA’s Commercial Lunar Payload Services missions as well as for the upcoming Japan Aerospace Exploration Agency’s Smart Lander for Investigating Moon (SLIM) mission.

Technical competence

Following the Moon landing failure of Chandrayaan-2, the ISRO has a lot riding on Chandrayaan-3’s success, especially given India’s blossoming emergence as a major player in the global space industry.

“If Chandrayaan 3 lander fails, it will be a huge national setback, irrespective of the cause,” Gurbir Singh, the UK-based author of The Indian Space Program: India’s incredible journey from the Third World towards the First, told SpaceRef.

Singh said that India’s now-en route lunar probe has technology objectives that are important for ISRO to demonstrate its technical competence, and critical for its future ambitions to land on Mars and elsewhere.

“All space agencies are familiar with mission failures,” Singh observed. ISRO worked through its first launcher failure in 1979 and slogged through repeated failures with its cryogenic rocket engines in 2010, he said.

“If the Chandrayaan 3 lander fails, ISRO will set up a failure analysis committee, investigate and try again. It will be the pursuit of national pride that another failure will result in an immediate announcement of Chandrayaan-4, probably before the end of 2025,” said Singh.

Broader geopolitics

Singh offered a look at the broader geopolitics of India’s growing space endeavors — not only dispatching robotic explorers to the Moon, but also pressing forward on a home-grown human spaceflight agenda.

For instance, during a June 21 ceremony in Washington, DC India became the 27th country to sign the NASA-promulgated Artemis Accords – a pact that establishes a practical set of principles to steer space exploration cooperation among nations participating in NASA’s back-to-the-Moon Artemis effort.

“India is taking a landmark step in becoming a party to the Artemis Accords, a momentous occasion for our bilateral space cooperation,” said Taranjit Singh Sandhu, India’s ambassador to the United States, while inking the Accords. “We are confident that the Artemis Accords will advance a rule-based approach to outer space.”

Ebb and flow

India recognized the significance for the United States if it signed the Artemis Accords, space analyst Singh said. “As a major space power, India’s signature would probably set the USA’s Artemis Accords to become a de facto global standard. India saw an opportunity and bargained hard.”

Indeed, with the signing of the Accords, NASA agreed to fly an Indian astronaut to the International Space Station (ISS) in 2024.

Singh said that “if an Indian astronaut makes it to the ISS in 2024, a tight timeline, he will probably be one of the four already trained in Russia for India’s Gaganyaan program. With Russia’s space activities in severe decline, India rightly sees many opportunities with NASA to accelerate its space activities, human and otherwise,” he said.

“In the ebb and flow of geopolitics,” Singh added, “the deals signed by the world’s largest democracy and the most powerful one make sense for both.” 

Return on investment

However, human spaceflight does not align well with India’s vision of harnessing space technology for national development, Singh observed. In fact, Vikram Sarabhai, India’s founding father of space exploration, explicitly excluded human spaceflight from its original objectives, he added.

“Return on investment in communication, remote sensing, and meteorology spacecraft makes sense,” Singh added, “but no buck spent on its human spaceflight program makes anything close to a bang.”

That said, India announced its human spaceflight endeavor, Gaganyaan, in 2018 with the goal of achieving its first piloted flight in 2023. By now, this is more likely to happen in 2025, Singh said.

As with the heady days of the “Cold War” and the “Space Race,” India’s Gaganyaan initiative is driven by a geopolitical imperative. “India has to have human spaceflight capability and a space station because China has,” Singh commented.

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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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