Take a look at the world around you and tell me who’s fucked up more historically, private entities or governments? I feel like the answer is governments. I don’t know about yours, but MY government can’t even make up a fucking BUDGET, and you want them doing shit in space? No thanks. Let’s let the people with passion, experience, and the right pay take care of it.
who’s fucked up more historically, private entities or governments?
Historically, private entities … not even close. Governments are far more open to scrutiny. Entities pay well to keep their fuckups hidden. You have dig into the hundreds of books written about them to learn the documented facts. How many workers did Ford have shot? (Why did Hitler give him a golden award?) Why did the German dye-makers move their factories to New Jersey, then China? Why was noone willing to insure the early nuclear reactors … so the government had to?
Because privatization (and capitalism in general) opens the door for greedy corporations to squeeze every bit of profit they can out of something. And skirt regulation or oversight in the process
because because because because (ad nauseum) - the law allows it. that’s on the government. We can fix that. No, I don’t know how, and if I did, I would be screaming it from the rooftops.
So: they thought the discrepancy had to do with possible errors in the measurement of Cepheid Variables as standard candles, when extrapolated with the more luminous and usually distant Type Ia Supernovas as standard candles, but JWST just confirmed that previous measurements of Cepheid Variables have in fact been correct and reliable.
Is this an accurate summary of the article?
Over the last several years, cosmologists have had to grapple with an unyielding conundrum. The expansion rate of the universe, also known as the Hubble’s constant (H0), has two different values depending on how you measure it, either with the echo of the Big Bang or with stars and galaxies. Researchers have now improved the precision of the second method, making the tension so much worse.
One of the key elements of the measurements is the calibration of Cepheids stars. The true luminosity of these stars fluctuates over a defined period, so by measuring said period and the brightness we see, it is possible to work out the distance of these objects. You could do the same with a distant lightbulb as long as you knew what wattage it was.
The method using the Cepheids is known as the cosmic distance ladder, and it has an estimated value of 73 kilometers per second per megaparsec (a megaparsec is equivalent to 3.26 million light-years). This means that if two galaxies are 1 megaparsec apart, they would appear to be moving away from each other at a speed of 73 kilometers (45 miles) per second.
“Our study confirms the 73 km/s/Mpc expansion rate, but more importantly, it also provides the most precise, reliable calibrations of Cepheids as tools to measure distances to date,” senior author, Richard Anderson, from the Ecole Polytechnique Federale de Lausanne, said in a statement.
By using the cosmic microwave background, as measured by the European Space Agency’s Planck space telescope, the expansion rate is 67.4 ± 0.5 km/s/Mpc. The discrepancy of 5.6 km/s/Mpc could either signify that there is an issue with the way we measure things, or that there is something deeply wrong with our understanding of the universe.
"Suppose you wanted to build a tunnel by digging into two opposite sides of a mountain. If you’ve understood the type of rock correctly and if your calculations are correct, then the two holes you’re digging will meet in the center. But if they don’t, that means you’ve made a mistake – either your calculations are wrong or you’re wrong about the type of rock,” explained Anderson.
“That’s what’s going on with the Hubble constant. The more confirmation we get that our calculations are accurate, the more we can conclude that the discrepancy means our understanding of the universe is mistaken, that the universe isn’t quite as we thought.”
They created atmospheric analogs using mixtures of gasses similar to those found on Neptune and Uranus, and subjected their probe to equivalent speeds up to 19 kilometers per second.
I’ll have to try the telescope! It’s not very powerful, but I know I’m on Saturn because it’s a clearly oblate blob. At that time, it’ll be a round blob?
This is freaking hilarious. I might buy this book just to read more of this:
“Imagine you’re stranded on the Red Planet with three crewmembers,” Seedhouse, a professor at Daytona Beach’s Embry-Riddle Aeronautical University wrote. “You have plenty of life-support consumables but only sufficient food to last one person until the rescue party arrives. What do you do?.. One day, while brewing coffee for breakfast, you realize there are three chunks of protein-packed meat living right next to you.”
… the biggest of the Mars explorers should sacrifice themselves first because they “both consume and provide the most food.” He went on to provide a “weirdly detailed look” at how to cut up one’s fellow humans if necessary.
“We don’t know where Seedhouse would fall in the buffet line because we couldn’t find his height and weight online,” the authors wrote, “and honestly we’re scared to ask.”
In “Survival and Sacrifice”… readers will also find… a photo of ten astronauts smiling in space alongside the caption: “In the wrong circumstances, a spacecraft is a platform full of hungry people surrounded by temptation. Is it wrong to waste such a neatly packaged meal?”
Well yeah, planets get launched from their parent star gravity field during initial solar system formation all the time. There could be hundreds of small planet sized rocks slinging by each other in every direction before a stable disk formation forms. Bye bye, IceBall#768!
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