Scott Manley seems to think the second engine had a air bubble in one of its lines and at those operating pressures its a guaranteed RUD (Rapid Unscheduled Disassembly). SpaceX might have to take a second look at its fuel delivery system since it is the root cause of both unsuccessful landings.
I enjoyed his take on why SN10 was there. To watch and learn what not to do.
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From decades-old data from the Voyager 2 Space probe that went out and explored the outer reaches of our solar system, NASA researchers have come across a new finding from the probe’s Jan 24, 1986 fly-by of Uranus.
As Voyager 2 flew by at 50,600 miles from the icy-blue planet, it found cloud tops, two new rings, 11 new moons and temperatures below minus 353 degrees Fahrenheit. What they didn’t know, Voyager 2 flew through a plasmoid. A giant magnetic bubble that was putting Uranus’ atmosphere into space.
All of the forces we experience every day can be reduced to just four categories: gravity, electromagnetism, the strong force and the weak force.
Now, physicists say they have found possible signs of a fifth fundamental force of nature.
Quote:
The experiment, based at the Fermi National Accelerator Laboratory (Fermilab) in Batavia, Illinois, searches for signs of new phenomena in physics by studying the behaviour of sub-atomic particles called muons.
There are building blocks of our world that are even smaller than the atom. Some of these sub-atomic particles are made up of even smaller constituents, while others can't be broken down into anything else (fundamental particles).
The muon is one of these fundamental particles; it's similar to the electron, but more than 200 times heavier.
The Muon g-2 experiment involves sending the particles around a 14-metre ring and then applying a magnetic field. Under the current laws of physics, encoded in the Standard Model, this should make the muons wobble at a certain rate.
Instead, the scientists found that muons wobbled at a faster rate than expected. This might be caused by a force of nature that's completely new to science.
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SN15 is on the pad ready for a test launch today. Still several hours out (if it happens). Weather doesn’t look great, last time it vanished behind a cloud an alien shot it out of the sky.
Everyday astronaut link isn’t even up yet, as the village hasn’t been cleared. But I got it streaming in the background so I’ll link it up when it gets close. New ship than the last 4, minor changes. I like the odds of a landing.
Edit: scrubbed for today.
Last edited by Scroopy Noopers; 04-30-2021 at 12:12 PM.
So in For All Mankind season 2, they launch an advanced version of the shuttle that launches into space on it's own after piggy backing off a 747. Can someone more knowledgeable on space stuff than me explain why it's preferable to keep using rockets vs a more advanced shuttle setup?
First — and perhaps most importantly — the program was wildly expensive. The average cost of a shuttle launch was a mind-boggling $450 million, far more than NASA had predicted. While the shuttle was proposed to make disposable rockets a thing of the past, it did exactly the opposite. Most customers who wanted to put satellites into orbit found conventional rockets to be a cheaper alternative.
Second, the proposed launch schedules and turnaround times for the shuttle fleet were essentially fantasy. The fastest turnaround for any shuttle in the history of the program was 54 days. And after the Challenger disaster, the fastest turnaround was 88 days — a far cry from what NASA officials thought they could accomplish. Slower turnarounds meant fewer flights, which meant less access to space for paying customers, further driving business away from NASA.
The shuttle was revealed to be a high-risk, experimental vehicle — something most astronauts had known all along. The subsequent investigation also revealed serious problems with NASA’s safety culture. Still, the space agency took its lashings and made the changes required to get the shuttle flying again.
But 17 years after Challenger, Space Shuttle Columbia broke apart while reentering Earth’s atmosphere. Yet again, the entire crew — this time featuring the highly publicized first Israeli astronaut, Ilan Ramon — was killed. Although the technical cause of the Columbia disaster was very different than what led to the loss of Challenger, the investigation again found deep cultural problems at NASA.
The tragedy drove home that the Space Shuttle could never be truly safe.
