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Elon Musk's giant Starship rocket is launching again. Here's what to expect – North Country Public Radio

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The SpaceX Starship is seen as it stands on the launch pad ahead of its third flight test from Starbase in Boca Chica, Texas on March 12, 2024. Image: Chandan Khanna/AFP via Getty Images

The first time, it tumbled out of control and exploded; the second time, an onboard fire triggered its self-destruct mechanism.

On Thursday, SpaceX will once again attempt to fly its giant rocket, Starship. The company’s founder, Elon Musk, had said that he had hoped for a launch attempt towards the end of the week. A final approval from the Federal Aviation Administration came through late Wednesday afternoon.

The company has made upgrades and likely changed procedures since its previous attempts, but it remains to be seen whether this will be the launch that proves that the largest rocket ever built can really fly.

“They say that the third time is a charm,” says Paulo Lozano, director of the space propulsion laboratory at MIT. But, he adds, launching a rocket as large as Starship “is not a simple task.”

“Nobody has done like this before at this scale,” he says.

Starship is a stainless steel monster. It stands nearly 400 feet tall, and its first stage, known as “Super Heavy,” is powered by 33 Raptor engines that must all work together to heave it towards orbit.

SpaceX founder Elon Musk believes this massive machine can carry humans to the moon and Mars. Its durable stainless steel construction makes it easy to reuse, at least in theory, and could dramatically reduce the cost of launching satellites and people into orbit. NASA has given billions to SpaceX to develop Starship as a lunar landing system that could deliver astronauts to the lunar surface.

But before Starship can fulfill these lofty ambitions, it’s got to fly. In its first test, nearly a year ago, the spacecraft made it off the ground, but it did considerable damage to the launch pad in the process, hurling concrete and debris for up to half-a-mile. Multiple engines in the first stage gave out, and as the rocket fell back to Earth, its self-destruct system also failed to properly destroy it. It tumbled out of control for several seconds before finally breaking apart.

SpaceX’s Starship last April ended after the rocket spun out of control and eventually exploded over the Gulf of Mexico. Image: Eric Gay/AP

The second flight in December was more successful. The launch pad was not obliterated by the 33 engines, all of which fired as expected. The Starship also successfully separated from its booster at the predetermined altitude. But the booster failed to reignite its engines properly and exploded before it could descend back to the Gulf of Mexico. Starship’s self-destruct system (beefed up after the first flight) also detonated before it could reach its desired altitude.

Scott Manley, a popular YouTuber who closely tracks Starship launches, says that the second stage likely failed because it had too much fuel and oxidizer aboard. To try and reduce mass as it flew into space, “it began dumping excess oxygen,” he says. Unfortunately, the oxygen, which is highly flammable, apparently caught fire either in or around the rear of the rocket. “There was a fire in there that got turbo-charged by having oxygen just leak all over it,” he says.

This time around, Manley says several additional changes have been made. Based on photos taken by rocket-watchers near the site, the fire suppression system appears to have been beefed up and the oxygen-dumping system has also been tweaked. “That will probably solve that problem,” he says, but adds, “It doesn’t guarantee they’ve solved every single problem.”

Starship has also added additional tasks to the flight test. It will attempt to briefly open its payload bay doors while in orbit. And it will conduct a test to see whether it can transfer propellant from one fuel tank to another. Moving fuel around will be critical for both lunar and Martian trips, as the vehicle will need to top off its tanks for both journeys.

Lozano says that fuel transfer is particularly challenging in space.

“All of these propellants have very high vapor pressure,” he says. That means if they’re exposed to the vacuum of space, they will “decompress explosively.” Even the act of pumping fuel is tricky in zero gravity, Lozano, says, because there’s no force pressing the fuel towards the bottom of the tanks, where pumps might normally operate.

“There is no experience doing this kind of thing,” he says. “It’s a new technology, but I’m pretty sure that technically it’s possible to do.”

Finally, Starship will also attempt to relight its Raptor engines before re-entering Earth’s atmosphere. Both Manley and Lozano say they will be closely watching that process.

As Starship enters the atmosphere, “you need to protect it from massive amounts of heating,” Manley says. The underbelly of the ship is covered in thermal protection tiles, he says, but “they’ve been falling off on every single test. So it remains to be seen whether they can actually keep enough tiles on Starship for it to make it through re-entry.”

“If it comes back in one piece, I think it’s going to be a big success,” Lozano says.

In total, the flight test will take a little over an hour, and — assuming all goes well — the spaceship will splash down in the Indian Ocean.

Launch is expected to take place Thursday around 8 a.m. Eastern.

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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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