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SpaceX wins NASA approval to launch astronauts on reused rockets, spacecraft – Teslarati

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SpaceX appears to have won NASA’s approval to launch astronauts on reused Falcon 9 rockets and Crew Dragon spacecraft a matter of days after the company’s astronaut launch debut went off without a hitch.

Ever since SpaceX began landing and reusing orbital-class Falcon 9 boosters some 15 months after it won a NASA contract to develop Crew Dragon, the obvious possibility that the two groundbreaking technologies might one day meet has always floated just under the surface. Almost without fail, most joint NASA/SpaceX press conferences will receive a question or two about whether either party is thinking about or working towards astronaut launches on flight-proven spacecraft. Encouraged by the fact that partner Boeing’s separate Starliner spacecraft was sold to NASA with reusability in mind from the start, those questions continued up until (and after) the day SpaceX became the first private company in history to launch astronauts into orbit.

In a wholly unexpected turn of events, a modification to SpaceX’s ~$3.1 billion NASA Commercial Crew Program (CCP) contract was spotted on June 3rd. Without leaving much room for interpretation, the contract tweak states that SpaceX is now “[allowed to reuse] the Falcon 9 launch vehicle and Crew Dragon spacecraft beginning with” its second operational astronaut launch, known as Post Certification Mission-2 (PCM-2) or Crew-2. Given the spectacular, hiccup-free success of SpaceX’s inaugural astronaut launch and International Space Station (ISS) arrival just 3-4 days prior, it’s safe to say that NASA is extremely happy with the results of the mission.

SpaceX could soon reuse the vast majority of rocket and spacecraft hardware involved in its astronaut launches, potentially dramatically cutting the cost of sending humans into orbit. (Richard Angle)

Without a shred of doubt, SpaceX has worked tirelessly for years to earn enough of NASA’s technical trust to permit crewed launches on flight-proven hardware, a possibility that even the optimists in the crowd assumed was distant at best. It has almost always been an uphill battle for SpaceX – a fact made especially clear when framed beside partner Boeing. An inherently conservative organization, NASA has repeatedly given Boeing and its more traditional Starliner spacecraft and development approach the benefit of the doubt while frequently tearing into the nooks and crannies of SpaceX and Crew Dragon over half a decade of cooperation.

While functioning more like an anchor when SpaceX finds itself working with conservative, stubborn organizations like NASA and US military branches, the company’s wholly non-traditional style of development has secured technical success after technical success. Over the course of the second half of SpaceX’s 20-mission NASA Commercial Resupply Services 1 (CRS1) contract, the company has still managed to successfully launch dozens of tons of cargo to the space station with flight-proven spacecraft and boosters. From CRS-11 to CRS-20, five missions featured reused Falcon 9 boosters and all but one of those 10 flights featured once or even twice-flown Cargo Dragon spacecraft.

Cargo Dragon C113 bares its scorched heat shield after completing CRS-17 – its third orbital mission – and returning to port on June 4th, 2019. (Pauline Acalin)
On CRS-18, a flight-proven Dragon and Falcon 9 booster teamed up for a uniquely economical space station resupply mission. (SpaceX)

In short, SpaceX has demonstrated more than a dozen times to NASA that it’s fully capable of building, launching, and reusing orbital-class rockets and spacecraft. Additionally, before an unrelated design flaw destroyed the spacecraft during post-recovery testing, SpaceX successfully launched, recovered, and refurbished Crew Dragon capsule C201 in March 2019, demonstrating its dramatically improved reusability. While suborbital, Crew Dragon C205’s January 2020 In-Flight Abort (IFA) test also likely helped demonstrate the new spacecraft’s reusability and gave NASA more experience with the reuse of Falcon 9 Block 5 rockets as B1046’s fourth launch.

Every step along the way, SpaceX has put its money where its mouth is and proven that it’s more than capable of doing what much larger, more traditional companies have only claimed to be capable of – and often months or even years before its competitors and for hundreds of millions to billions of dollars less. While it’s much more likely that NASA has yet to actually certify SpaceX’s Crew Dragon spacecraft and Falcon 9 boosters for flight-proven astronaut launches, the June 3rd contract modification – at a minimum – signifies the space agency’s expeditious intent to do so. What is unambiguous is the schedule it lays out: SpaceX could potentially launch astronauts on a flight-proven rocket and spacecraft as early as its second operational taxi mission to the ISS.

Scheduled to launch for the first time as early as August 30th, 2020, the above Crew Dragon capsule and Falcon 9 booster could become the first to launch astronauts into orbit twice. (SpaceX)

Known as PCM-2 or Crew-2, the mission is scheduled to follow Crew Dragon’s first operational astronaut launch – Crew-1 – by roughly six months. Contingent upon Crew Dragon Demo-2’s safe return of NASA astronauts Bob Behnken and Doug Hurley later this year, Crew-1 is tentatively scheduled to launch on August 30th, although it could potentially launch even sooner. If successful, Crew-2 should follow as soon as mid-2021 and could potentially reuse Crew-1’s Falcon 9 booster and the Demo-2 or Crew-1 Dragon capsule.

Check out Teslarati’s newsletters for prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket launch and recovery processes.

SpaceX wins NASA approval to launch astronauts on reused rockets, spacecraft




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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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