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kaylynfreeman

NASA's SLS Rocket to the Moon Faces Setback After Test - The New York Times - 0 views

  • After billions of dollars and a decade of work, NASA’s plans to send astronauts back to the moon had a new setback on Saturday. A planned eight-minute test firing of the four engines of a new mega rocket needed for the moon missions came to an abrupt end after only about a minute.
  • NASA officials, however, said that it was too early to predict delays, if any. “I don’t think at this point that we have enough information to know,” Jim Bridenstine, the NASA administrator, said during a news conference after the test. “It depends what the anomaly was and how challenging it’s going to be to fix it.”
  • The rocket, known as the Space Launch System, has yet to travel to space, and Saturday’s test was intended to be a key milestone. For the first time, the four engines on the booster stage were set to be fired for about eight minutes, simulating what they would do during an actual launch.
lucieperloff

Jeff Bezos Is Going To Space (For A Few Minutes) : NPR - 0 views

  • Bezos will climb aboard a rocket made by his space exploration company Blue Origin.
  • Blue Origin's rocket is called New Shepard, and it's reusable – the idea being that reusing rockets will lower the cost of going to space and make it more accessible.
  • The flight is scheduled for July 20 — the anniversary of the Apollo 11 moon landing in 1969.
cvanderloo

NASA fires SLS moon rocket in major test, but engines shut down early - 0 views

  • the test in Mississippi was cut short after a malfunction caused an automatic abort.
  • "We did get an MCF on engine four," a control room member said less than a minute into the test fire, using an initialism that stands for "major component malfunction."
  • The test was meant to last eight minutes – the full duration needed for the booster during its Artemis program liftoff – but only ran less than two minutes.
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  • An exact plan moving forward, which could mean a second test and delay before transport to Florida, had not yet been released by Saturday evening.
  • NASA said the RS-25 engines have been upgraded and refurbished since their last missions and the agency has placed an order with Aerojet Rocketdyne, recently acquired by Northrop Grumman, for 24 brand new versions.
colemorris

SLS: Nasa's 'megarocket' engine test ends early - BBC News - 0 views

  • The SLS is part of Nasa's Artemis programme, which aims to put Americans back on the lunar surface in the 2020s.
  • When it makes its maiden flight later this year, the SLS will become the most powerful rocket ever to have flown to space.
  • This will be followed - possibly in 2024 - by the first landing on the Moon by humans since the Apollo 17 mission in 1972.
    • colemorris
       
      why are we trying to go back now though?
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  • The four RS-25s can generate 1.6 million lbs (7 Meganewtons) of thrust
  • This will make it 15% more powerful than the giant Saturn V rocket that sent astronauts to the Moon in the 1960s and 70s.
    • colemorris
       
      Thats it? Only 15% stronger in 50 years? Maybe not necesary for more but just surprising
Javier E

Is crime a virus or a beast? How metaphors shape our thoughts and decisions [Repost] : ... - 0 views

  • how influential metaphors can be. They can change the way we try to solve big problems like crime. They can shift the sources that we turn to for information. They can polarise our opinions to a far greater extent than, say, our political leanings. And most of all, they do it under our noses
  • In the first report, crime was described as a “wild beast preying on the city” and “lurking in neighbourhoods”. After reading these words, 75% of the students put forward solutions that involved enforcement or punishment,
  • The second report was exactly the same, except it described crime as a “virus infecting the city” and “plaguing” neighbourhoods. After reading this version, only 56% opted for more enforcement, while 44% suggested social reforms.
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  • The metaphors affected how the students saw the problem, and how they proposed to fix it.
  • So metaphors can influence opinions and choices, but how strong are their effects really? At the end of their experiments, Thibodeau and Boroditsky asked the students to state their gender and political affiliation. As you might expect, men and Republicans were more likely to emphasise enforcement, while women and Democrats leant towards social reforms. But these factors only created differences of around 8 to 9 percentage points. The metaphors, on the other hand, created shifts of between 18 to 22 percentage points!
  • it’s virtually impossible to talk about complex issues like crime, the economy, health and so on, without resorting to metaphors.
  • bad metaphors can do a great disservice to the public understanding of science. The idea of the “evolutionary ladder” perpetuates the myth that evolution is about a steady linear march towards complexity.
aqconces

Clash of the billionaires: Elon Musk and Jeff Bezos are duking it out over space - The ... - 0 views

  • At stake is the right to pursue what many view as a potentially momentous breakthrough in space flight: the ability to launch a rocket into space, return it to Earth, and then launch it again as if it were a commercial air plane.
  • The ability to reuse rockets could dramatically lower the cost of space flight.
anniina03

Boeing's Mission for NASA Gets Cut Short - The Atlantic - 0 views

  • It was a picture-perfect launch, just before sunrise on a sandy coastline. The rocket, bright as a candle flame, climbed steadily, leaving a spindly trail of smoke that split the sky in half, with the sharp darkness of night on one side and the first pastel hues of daylight on the other. It carried a capsule, bound for the International Space Station, to the edge of space and let go.
  • The trouble started after that. The capsule, built for NASA by Boeing, was supposed to ignite its own engines to boost itself higher into orbit, where it would chase after the space station. But the engines didn’t start when they should have.
  • But the craft was flying just out of reach of communication, between two satellites. When engineers could finally contact Starliner, they made the spacecraft thrust itself higher, but it was too late. The confused capsule had been burning fuel to maintain its position, and didn’t have enough left to execute that crucial push toward the ISS.
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  • The capsule, named CST-100 Starliner, is part of a NASA program called Commercial Crew, an effort to launch astronauts to the ISS from the U.S. The agency has not had that capability since the space-shuttle program ended in 2011 under the weight of cost, safety, and political factors.
  • According to NASA officials, after Starliner separated from the rocket, the capsule missed the moment it needed to ignite its engines for a carefully timed and fully automated process known as an orbital insertion burn. Without that step, the spacecraft couldn’t fire the thrusters to shove itself into the correct orbit.
  • Engineers watched, unable to help from below, as the spacecraft became disoriented.
  • Jim Chilton, the senior vice president of Boeing Space and Launch, said engineers don’t know why the clock went off track. Nicole Mann, who would have made her first trip to space on the next mission, said that the astronauts “train extensively for this type of contingency, and had we been on board, there could have been actions that we could have taken,” such as manually controlling the spacecraft.
  • Now the future of the program is uncertain, particularly for Boeing. It’s unclear what additional tests NASA might now require from Boeing before letting astronauts fly, including, perhaps, another attempt at an uncrewed mission. The capsule’s failure will certainly reshuffle schedules and could contribute to further delays for Boeing, already under scrutiny for its sluggishness in a recent report from NASA’s inspector general.
  • The spacecraft failure means yet another cycle of bad news for Boeing. The company has a long history with NASA; it was the prime contractor for the ISS and also worked on the space shuttles. But the company is better known for its airplanes, and in recent months the flaws of its 737 Max, which contributed to two deadly crashes, have put Boeing under intense pressure to prove that its aircraft are safe.
  • In the coming days, NASA and Boeing teams will review data from Starliner’s short-lived mission. And the space agency will continue its negotiations to buy more seats on the Soyuz, Russia’s transportation system, which can cost as much as $86 million. NASA’s last trip on the Soyuz system is scheduled for April. If neither company’s crew capsule is ready by then, NASA will have to buy more slots to ensure that American astronauts can launch to space.
proudsa

We Asked an Expert if the World Needs to Worry About North Korea's H-Bomb Claims | VICE... - 0 views

  • World Needs to Worry About North Korea's H-Bomb Claims
    • proudsa
       
      TOK related --> lesson on statistics and probability and how we should react to those facts
  • any truth
  • claimed to have successfully tested a hydrogen bomb
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  • said it was capable of miniaturizing its nuclear weapons and attaching them to rockets, meaning it would feasibly be able to blast them at all its imperialist pig-dog enemies in the USA—but obviously, these claims haven't yet been verified.
Emily Freilich

Rights group's report offers compelling evidence of Syria chemical attack - CBS News - 0 views

  • On Tuesday, the group Human Rights Watch issued a report that said evidence strongly implies that Syrian government troops' firing of rockets containing a nerve agent into a Damascus suburb on August 21 that the U.S. said killed over 1,400 people.
  • While the report doesn't furnish conclusive proof that the Syrian government carried out the attack with chemical weapons, it does present the most coherent circumstantial evidence I've seen so far to support the case.
  • The report does not rely on ambiguous intercepted phone calls. It cites no shadowy intelligence gathering
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  • HRW's experts take a close look at witness statements and photographs and video of the victims and -- above all -- the remains of the weapons that appear to have been used.
  • The report provides another map that shows that there were several military bases around Zamalka and Moadimiyeh on August 21st, that were within the correct firing distanc
jlessner

The case against e-readers: Why reading paper books is better for your mind. - The Wash... - 0 views

  • We know a lot about the pros and cons of reading a hard-copy book vs. reading electronically. The problem is, many of us refuse to listen.
  • Ask people what they like most about reading on digital screens (a question I’ve put to several hundred university students in the United States, Germany, Japan and Slovakia), and you hear over and again about convenience: “easy to carry” and “compact.”
  • Yet the soundness of this case is arguable. The earth metals we’re using up to build e-readers and tablets are not just rare but highly toxic. And think about all that energy needed to run servers and cooling fans. And remember, trees are a renewable resource.
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  • prefer print when reading both for pleasure and for school or work.
  • But the real nail in the coffin for one-size-fits-all electronic reading is concentration. Over 92 percent of those I surveyed said they concentrate best when reading a hard copy. The explanation is hardly rocket science. When a digital device has an Internet connection, it’s hard to resist the temptation to jump ship: I’ll just respond to that text I heard come in, check the headlines, order those boots that are on sale.
  • Readers are human. If you dangle distractions in front of us (or if we know they are just a click or swipe away), it’s hard not to take the bait.
runlai_jiang

Elon Musk: SpaceX and Tesla alive 'by skin of their teeth' - BBC News - 0 views

  • Elon Musk says his companies SpaceX and Tesla are both still alive only "by the skin of their teeth".The entrepreneur told an audience at the South by South West (SXSW) conference that both companies almost went bankrupt in 2008.
  • He said 2008 was an incredibly difficult year - SpaceX's Falcon 1 rocket failed for the third time, and Tesla almost went bankrupt two days before Christmas.
  • Mr Musk also got divorced, and he said he had to borrow money from his friends to pay his rent.
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  • "SpaceX is alive by the skin of its teeth, and so is Tesla - if things had just gone a little differently, both companies would be dead," he said.
  • Mr Musk remains convinced that life on Mars is both possible and necessary. He fears another "dark age" should a third world war occur, and feels that Mars will be integral to helping the human race survive and regenerate.He also feels there are plentiful business opportunities there.
runlai_jiang

Elon Musk: Mars ship test flights 'next year' - BBC News - 0 views

  • Elon Musk, a man prone to ludicrous deadlines, has birthed another: test flights of his Mars spaceship next year."I think we’ll be able to do short flights, up and down flights, some time in the first half of next year," he told an audience at the South by South West (SXSW) festival in Austin, Texas.
  • Elon Musk is unquestionably the most interesting businessman in Silicon Valley - arguably the world - thanks to his almost single-handed reignition of the space race.After a string of failed rockets - and near bankruptcy - SpaceX wowed the world with its latest flight, Falcon Heavy, in February.
  • "This is a situation where you have a very serious danger to the public. There needs to be a public body that has insight and oversight so that everyone is delivering AI safely. This is extremely important.
runlai_jiang

A Short History of the Soviet and Russian Space Program - 0 views

  • The modern age of space exploration includes more than 70 countries with research institutes and space agencies. However, only a few of them have launch capability, the three largest being NASA in the United States, Roscosmos in the Russian Federation, and the European Space Agency. Back in the early days of the Space Age, there were only two space agencies, both vying for supremacy in space: the U.S. and the Soviet Union (predecessor to today's Russian Federation).
  • The Mir YearsThe most successful space station built by the Soviet Union flew from 1986 through 2001. It was called Mir, and assembled on orbit (much as the later ISS was). It hosted a number of crew members from the Soviet Union and other countries in a show of space cooperation.
  • Disaster in Soviet SpaceDisaster struck the Soviet program and gave them their first big setback. It happened in 1967, when cosmonaut Vladimir Komarov was killed when the parachute that was supposed to settle his Soyuz 1 capsule gently on the ground failed to open. It was the first in-flight death of a man in space in history and a great embarrassment to the program. Problems continued to mount with the Soviet N1 rocket, which also set back planned lunar missions. Eventually, the U.S. beat the Soviet Union to the Moon, and the country turned its attention to sending unmanned probes to the Moon and Venus.
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  • Regime ChangeThe Soviet space program faced interesting times as Union began to crumble in the late 1980s and early 1990s. Instead of the Soviet space agency, Mir and its Soviet cosmonauts (who became Russian citizens when the country changed) came under the aegis of Roscosmos, the newly formed Russian space agency. Many of the design bureaus that had dominated space and aerospace design were either shut down or reconstituted as private corporations. The Russian economy went through major crises, which affected the space program. Eventually, things stabilized and the country moved ahead with plans to participate in the International Space Station, plus resume launches of weather and communications satellites.
Javier E

Musk, SBF, and the Myth of Smug, Castle-Building Nerds - 0 views

  • Experts in content moderation suggested that Musk’s actual policies lacked any coherence and, if implemented, would have all kinds of unintended consequences. That has happened with verification. Almost every decision he makes is an unforced error made with extreme confidence in front of a growing audience of people who already know he has messed up, and is supported by a network of sycophants and blind followers who refuse to see or tell him that he’s messing up. The dynamic is … very Trumpy!
  • As with the former president, it can be hard at times for people to believe or accept that our systems are so broken that a guy who is clearly this inept can also be put in charge of something so important. A common pundit claim before Donald Trump got into the White House was that the gravity of the job and prestige of the office might humble or chasten him.
  • The same seems true for Musk. Even people skeptical of Musk’s behavior pointed to his past companies as predictors of future success. He’s rich. He does smart-people stuff. The rockets land pointy-side up!
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  • Time and again, we learned there was never a grand plan or big ideas—just weapons-grade ego, incompetence, thin skin, and prejudice against those who don’t revere him.
  • Despite all the incredible, damning reporting coming out of Twitter and all of Musk’s very public mistakes, many people still refuse to believe—even if they detest him—that he is simply incompetent.
  • What is amazing about the current moment is that, despite how ridiculous it all feels, a fundamental tenet of reality and logic appears to be holding true: If you don’t know what you’re doing or don’t really care, you’ll run the thing you’re in charge of into the ground, and people will notice.
  • And so the moment feels too dumb and too on the nose to be real and yet also very real—kind of like all of reality in 2022.
  • I don’t really know where any of this will lead, but one interesting possibility is that Musk gets increasingly reactionary and trollish in his politics and stewardship of Twitter.
  • Leaving the politics aside, from a basic customer-service standpoint this is generally an ill-advised way for the owner of a company to treat an elected official when that elected official wishes to know why your service has failed them. The reason it is ill-advised is because then the elected official could tweet something like what Senator Markey tweeted on Sunday: “One of your companies is under an FTC consent decree. Auto safety watchdog NHTSA is investigating another for killing people. And you’re spending your time picking fights online. Fix your companies. Or Congress will.”
  • It seems clear that Musk, like any dedicated social-media poster, thrives on validation, so it makes sense that, as he continues to dismantle his own mystique as an innovator, he might look for adoration elsewhere
  • Recent history has shown that, for a specific audience, owning the libs frees a person from having to care about competency or outcome of their actions. Just anger the right people and you’re good, even if you’re terrible at your job. This won’t help Twitter’s financial situation, which seems bleak, but it’s … something!
  • Bankman-Fried, the archetype, appealed to people for all kinds of reasons. His narrative as a philanthropist, and a smart rationalist, and a stone-cold weirdo was something people wanted to buy into because, generally, people love weirdos who don’t conform to systems and then find clever ways to work around them and become wildly successful as a result.
  • Bankman-Fried was a way that a lot of people could access and maybe obliquely understand what was going on in crypto. They may not have understood what FTX did, but they could grasp a nerd trying to leverage a system in order to do good in the world and advance progressive politics. In that sense, Bankman-Fried is easy to root for and exciting to cover. His origin story and narrative become more important than the particulars of what he may or may not be doing.
  • the past few weeks have been yet another reminder that the smug-nerd-genius narrative may sell magazines, and it certainly raises venture funding, but the visionary founder is, first and foremost, a marketing product, not a reality. It’s a myth that perpetuates itself. Once branded a visionary, the founder can use the narrative to raise money and generate a formidable net worth, and then the financial success becomes its own résumé. But none of it is real.
  • Adversarial journalism ideally questions and probes power. If it is trained on technology companies and their founders, it is because they either wield that power or have the potential to do so. It is, perhaps unintuitively, a form of respect for their influence and potential to disrupt. But that’s not what these founders want.
  • even if all tech coverage had been totally flawless, Silicon Valley would have rejected adversarial tech journalism because most of its players do not actually want the responsibility that comes with their potential power. They want only to embody the myth and reap the benefits. They want the narrative, which is focused on origins, ambitions, ethos, and marketing, and less on the externalities and outcomes.
  • Looking at Musk and Bankman-Fried, it would appear that the tech visionaries mostly get their way. For all the complaints of awful, negative coverage and biased reporting, people still want to cheer for and give money to the “‘smug nerds building castles in the sky.’” Though they vary wildly right now in magnitude, their wounds are self-inflicted—and, perhaps, the result of believing their own hype.
  • That’s because, almost always, the smug-nerd-genius narrative is a trap. It’s one that people fall into because they need to believe that somebody out there is so brilliant, they can see the future, or that they have some greater, more holistic understanding of the world (or that such an understanding is possible)
  • It’s not unlike a conspiracy theory in that way. The smug-nerd-genius narrative helps take the complexity of the world and make it more manageable.
  • Putting your faith in a space billionaire or a crypto wunderkind isn’t just sad fanboydom; it is also a way for people to outsource their brain to somebody else who, they believe, can see what they can’t
  • the smug nerd genius is exceedingly rare, and, even when they’re not outed as a fraud or a dilettante, they can be assholes or flawed like anyone else. There aren’t shortcuts for making sense of the world, and anyone who is selling themselves that way or buying into that narrative about them should read to us as a giant red flag.
Javier E

Elon Musk Is Not Playing Four-Dimensional Chess - 0 views

  • Musk is not wrong that Twitter is chock-full of noise and garbage, but the most pernicious stuff comes from real people and a media ecosystem that amplifies and rewards incendiary bullshit
  • This dynamic is far more of a problem for Twitter (but also the news media and the internet in general) than shadowy bot farms are. But it’s also a dilemma without much of a concrete solution
  • Were Musk actually curious or concerned with the health of the online public discourse, he might care about the ways that social media platforms like Twitter incentivize this behavior and create an information economy where our sense of proportion on a topic can be so easily warped. But Musk isn’t interested in this stuff, in part because he is a huge beneficiary of our broken information environment and can use it to his advantage to remain constantly in the spotlight.
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  • Musk’s concern with bots isn’t only a bullshit tactic he’s using to snake out of a bad business deal and/or get a better price for Twitter; it’s also a great example of his shallow thinking. The man has at least some ability to oversee complex engineering systems that land rockets, but his narcissism affords him a two-dimensional understanding of the way information travels across social media.
  • He is drawn to the conspiratorial nature of bots and information manipulation, because it is a more exciting and easier-to-understand solution to more complex or uncomfortable problems. Instead of facing the reality that many people dislike him as a result of his personality, behavior, politics, or shitty management style, he blames bots. Rather than try to understand the gnarly mechanics and hard-to-solve problems of democratized speech, he sorts them into overly simplified boxes like censorship and spam and then casts himself as the crusading hero who can fix it all. But he can’t and won’t, because he doesn’t care enough to find the answers.
  • Musk isn’t playing chess or even checkers. He’s just the richest man in the world, bored, mad, and posting like your great-uncle.
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