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Starliner Spacecraft's Landing on Sunday a Critical Moment for Boeing and NASA – Space.com

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Update for Dec. 22: Boeing’s first Starliner spacecraft has successfully landed in New Mexico. For photos and videos, read our full landing story here.

Boeing’s first Starliner spacecraft will return to Earth Sunday (Dec. 22) to cap a rocky test flight that, despite some successes, left the capsule in the wrong orbit and unable to reach the International Space Station for NASA as planned. 

If all goes according to the revised plan, the uncrewed Starliner — which Boeing designed to eventually fly astronauts for NASA — will land at White Sands Space Harbor in New Mexico at 7:57 a.m. EST (1257 GMT), six days earlier than its original Dec. 28 target. The spacecraft will rely on a heat shield to withstand the searing heat of reentry, three parachutes to slow its descent back to Earth and airbags to cushion its landing. And all of that gear needs to work perfectly for a safe touchdown.

“Tomorrow is a big day,” NASA Administrator Jim Bridenstine said of Starliner’s landing in a teleconference with reporters today (Dec. 21). “We have to be on our ‘A’ game.”

You can watch Boeing’s Starliner landing live on Space.com Sunday, courtesy of NASA TV, beginning at 6:45 a.m. EST (1145 GMT).

Video: How Boeing’s Starliner Spacecraft Will Land
More:
Boeing’s 1st Starliner Flight Test in Photos

This Boeing graphic shows the stages of entry, descent and landing for the Starliner spacecraft. Boeing’s first Starliner will return to Earth Sunday, Dec. 22, to land at White Sands Space Harbor in New Mexico. (Image credit: Boeing)

A critical test

“Entry, descent and landing is not for the faint of heart…”

Jim Chilton, Boeing Space & Launch Div.

A smooth, successful landing will be a redemption of sorts for Boeing’s Starliner, which was left in its unplanned orbit due to a timing error with the spacecraft’s mission clock. The glitch meant Starliner, which launched early Friday (Dec. 20), was unable to rendezvous with the space station to demonstrate its automated docking system, a vital capability for future astronaut missions. 

But just as vital is landing safely. And that’s what Boeing will attempt to show on Sunday. 

“Entry, descent and landing is not for the faint of heart, and this vehicle has not entered,” said Jim Chilton, senior vice president of Boeing’s Space and Launch Division. “We have not gone from space to the atmosphere.”

The airbags on Boeing’s CST-100 Starliner capsule will deploy once the spacecraft reaches an altitude of 3,000 feet (900 meters) during its return to Earth.  (Image credit: Boeing)

Leaving orbit

Starliner’s return to Earth will occur in stages, each of which must go right for the spacecraft to land safely. First, Starliner will have to leave its current orbit, which is about 155 miles (250 kilometers) above Earth.

To do that, Starliner’s service module will fire its thrusters in a so-called “deorbit burn” at 7:23 a.m. EST (1223 GMT) that will last 50 seconds. That should slow the spacecraft to about 25 times the speed of sound, Steve Stich, deputy manager of NASA’s Commercial Crew Program, said in the teleconference. Mach 25 is about 19,181 mph (20,870 km/h).

After the deorbit burn, the cylindrical service module should separate from the Starliner crew capsule and perform its own maneuver to fall safely out space and into the Pacific Ocean, Stich said. 

An artist’s illustration of Boeing’s CST-100 Starliner during its airbag and parachute-assisted landing. (Image credit: Boeing)

Parachute landing

The rest of the landing scenario relies on Starliner’s crew capsule, which will plunge through the atmosphere on a trajectory that flies over the Pacific Ocean and crosses Baja California and Mexico,  and then just west of El Paso, Texas, to reach a landing zone at White Sands Space Harbor in New Mexico. 

When the gumdrop-shaped Starliner slams into the Earth’s atmosphere, its heat shield will heat up to 3,000 degrees Fahrenheit (1,650 degrees Celsius), according to a Boeing mission description. The spacecraft will then jettison that heat shield and prepare to deploy its parachutes. 

“By the time we get to 30,000 feet [9,100 meters], we’ll deploy parachutes; the vehicle will be going less than the speed of sound, less than Mach 1,” Stich said. 

Starliner is equipped with three main parachutes to slow its descent back to Earth. During a pad abort test in November, only two of those parachutes deployed during a Starliner landing, a glitch Boeing pegged to a misaligned pin in the parachute rigging system. 

Chilton said both Boeing and NASA have checked and double-checked that the pins in the current Starliner’s parachutes were installed correctly. 

“We did have a NASA team go in and look at all the closeout photos,” Stitch added. “The parachutes on this spacecraft were rigged correctly.”

Starliner’s big test

At 3,000 feet (900 m), air bags should inflate on Starliner’s base. Those airbags are designed to cushion the impact of landing on astronauts inside the spacecraft. 

While there are no human astronauts on this Starliner, the spacecraft is carrying “Rosie the Rocketeer,” a spacesuit-clad anthropomorphic test dummy equipped with sensors to measure what astronauts will feel. 

“We’re going to be able to measure how the human would receive the Gs during entry, and also as the parachutes deploy and as we land,” Stich said. “We can measure that environment on Rosie and then extrapolate how a human would do in that environment.”

Related: Boeing’s CST-100 Starliner Space Capsule (Infographic)

After landing, teams from Boeing and NASA will arrive to recover the vehicle (and its Rosie dummy) to see how Starliner and its systems performed during the trip home. 

About the only thing Starliner will not have done during its test flight is the actual docking with the space station. Timing issue aside, the spacecraft fared well during launch and its major systems performed as expected in orbit, Chilton said. Engineers were also able to to deploy and retract Starliner’s docking system to make sure it would work during actual dockings. 

But just like launch, landing is a test that stands apart, Chilton said.  

“Not all objectives are created equal,”he added. “Make no mistake. We still have something to prove here on entry tomorrow.”

Visit Space.com Sunday, Dec. 22, for complete coverage of Starliner’s OFT landing at White Sands Space Harbor, New Mexico.

Email Tariq Malik at tmalik@space.com or follow him @tariqjmalik. Follow us @Spacedotcom, Facebook and Instagram.

Need more space? Subscribe to our sister title “All About Space” Magazine for the latest amazing news from the final frontier! (Image credit: All About Space)

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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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