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A piece of a Chinese rocket slammed into the Moon this morning – The Verge

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After years of zooming through deep space, a presumed leftover piece of a Chinese rocket slammed into the Moon today, just as space tracking experts expected it would. At least, it should have hit the Moon around 7:30AM ET this morning, as long as the law of gravity has not changed. The collision brings an end to the rocket’s life in space and likely leaves a fresh new crater on the Moon that may be up to 65 feet wide.

The now-expired rocket has caused quite a buzz this past month. First of all, the vehicle was never intended to crash into the Moon, making it a rare piece of space debris to find its way to the lunar surface by accident. Additionally, there was some confusion over its identity, with various groups trying to nail down exactly where the rocket came from.

Originally, space trackers thought it was a leftover piece of a SpaceX Falcon 9 rocket that had launched a weather satellite back in 2015. But after careful analysis, various groups of space trackers confirmed that the rocket was likely leftover from the launch of China’s Chang’e 5-T1 mission — a flight that launched in 2014 to test out technology needed to bring samples back from the Moon. That mission, launched on a Chinese Long March 3C rocket, sent a spacecraft looping around the Moon in an attempt to see if China could send a vehicle to the Moon and then bring it back to Earth. Given the flight profile of the Chang’e 5-T1 mission and the tracking of the mystery object, astronomers are fairly certain that a chunk of the Long March 3C rocket has remained in an extremely elongated orbit around Earth ever since, only to find its way to the far side of the Moon.

China tried to deny that the rocket belonged to the country’s space program, claiming that the rocket actually returned to our planet and fell into the atmosphere. “According to China’s monitoring, the upper stage of the Chang’e-5 mission rocket has fallen through the Earth’s atmosphere in a safe manner and burnt up completely,” Wang Wenbin, a spokesperson for China’s Ministry of Foreign Affairs, said during a press conference in February after trackers had changed the identity of the rocket. However, Wang may have mixed up his Chinese missions. Chang’e-5 was a completely different mission that launched in 2020, while astronomers believe this rocket stemmed from the Chang’e 5-T1 mission, which took place six years earlier.

Some other confusion revolved around the fact that the Space Force’s 18th Space Control Squadron (18SPCS) — which keeps track of space debris around Earth — noted on its tracking website that the rocket from the Chang’e 5-T1 mission returned to our planet about a year after launch and burned up in our atmosphere. However, the 18SPCS later confirmed in a statement to The Verge that the Long March 3C from the flight did not actually reenter our atmosphere and has been in space ever since its launch.

Though the 18SPCS’s update lends credibility to the idea that the rocket is from the Chang’e 5-T1 mission, it won’t say for sure that’s the origin of the object. “The 18th Space Control Squadron is currently determining the appropriate update to the space catalog,” Major Annmarie Annicelli, chief of the public affairs operations division at US Space Command, provided in an emailed statement to The Verge. “While U.S. Space Command can confirm the CHANG’E 5-T1 rocket body never de-orbited, we cannot confirm the country of origin of the rocket body that may impact the moon.”

The reason the 18SPCS does not have good data here is that it’s not really concerned with tracking deep-space debris like this. The 18SPCS is much more focused on tracking space debris in closer orbits to Earth, as the space environment there has become much more crowded. That population of objects has grown extensively over the last few decades, especially after Russia intentionally destroyed one of its own satellites during an anti-satellite test, or ASAT test, in November. The 18SPCS claimed that once the Chang’e 5-T1 rocket passed more than 22,000 miles beyond Earth, their official trackers de-prioritized following the object. They plan to revise the database, though, to reflect more up-to-date information.

But while the 18SPCS cannot confirm or deny the source of the space debris, astronomers are pretty certain that the rocket is from Chang’e 5-T1 and that it is now pulverized on the lunar surface. The rocket’s demise was first predicted by Bill Gray, an astronomer and asteroid tracker running Project Pluto, who’s been following the rocket pretty closely for the last few months.

The collision shouldn’t really be a cause for concern, especially since we’ve crashed plenty of objects on the lunar surface before. Pieces of rockets from the Apollo missions to the Moon were sent careening into the lunar surface, and NASA purposefully crashed a spacecraft into the Moon in 2009 called LCROSS in order to blast up some lunar dirt and see what materials were lurking under the surface. All those past crashes were usually on purpose, though, and the ones that weren’t typically entailed a lunar lander or vehicle bound for the Moon going in a little too hard. This may be the first time a spacecraft that wasn’t supposed to go to the Moon’s surface made it there anyway. Or at least, it’s the first time one we know about.

Gray and others have used this episode as a case for why we need better plans for disposing of our deep-space debris and why we need to be tracking junk that goes to extra high altitudes like this. But now that the rocket has impacted, its leftovers could be great to study. The team behind NASA’s Lunar Reconnaissance Orbiter, which is currently orbiting the Moon, says they’ll try to see the aftermath of the crash if they can. Gray predicted that the rocket likely hit the Moon in a far side crater called Hertzsprung.

“We certainly have an interest in finding the impact crater and will attempt to do so over the coming weeks and months,” John Keller, the deputy project scientist for the Lunar Reconnaissance Orbiter mission, emailed to The Verge in a statement. “We will not be near the impact site when it takes place so we won’t be able to directly observe it. The onboard narrow angle cameras have sufficient resolution to detect the crater but the Moon is full of fresh impact craters, so positive identification is based on before and after images under similar lighting conditions.”

Hopefully, the LRO team can find it and give us an image of the final resting place of the Long March 3C rocket, and perhaps we can use this whole ordeal as an opportunity to see what kinds of materials the collision was able to dig up.

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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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