SpaceX Resupply Mission To Launch March 30
An anonymous reader writes "Originally scheduled to launch on March 16, SpaceX's Dragon spacecraft will now launch March 30. From the article: 'Officials delayed launch from March 16 after engineers raised concerns that petroleum stains discovered on thermal blankets could contaminate sensitive components on a high-definition imaging camera and an optical communications experiment mounted inside the Dragon spacecraft's trunk. "After careful review and analysis, engineering teams representing both the ISS and SpaceX have determined Dragon is ready to fly 'as-is.' All parties agree that the particular constituents observed in Dragon's trunk are in line with the previously defined environments levels and do not impose additional risk to the payloads," SpaceX said in a statement.'"
Also per Rand Simberg and others, it appears that Space X is going to launch their 54-ton capable heavy launch vehicle THIS year - thats something like 6 years ahead of NASA's porkbarrel SLS.
Lets cross our fingers and hope that Elon's engine of creative destruction will blow up the market for government directed launch vehicle technology, and start using the Billions allocated for 1960s rocket technology for something like permanent cis-Lunar habitation, asteroid visits, and/or experimenting with off-planet manufacturing so we can start learning how to build and stay beyond LEO.
SpaceX,will also achieve a spaceflight first.
After delivering cargo to the International Space Station, the first stage of the Falcon 9 rocket used for the flight will fire its engines for the second time. The burn will allow the rocket to reenter the atmosphere in controlled flight, without breaking up and disintegrating on the way down as most booster rockets do.
After recovering the rocket from the water on Sunday, SpaceX engineers and technicians will study it to determine what it would take to refurbish such a rocket for reuse. SpaceX also has plans to recover and reuse the second stage rocket, but for now, it will recover only the first stage and its nine Merlin engines, which make up the bulk of the cost of the rocket.
Today's vices may be tomorrow's virtues.
Now, not only do our brave astronauts go to space in a vehicle on top of 10,000 tons of highly explosive chemicals, built by the lowest bidder, now they also get refurbished components, too!
I keed...
the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff
Kent: My condolences on your meltdown, Knight.
Chris Knight: What meltdown, Kent?
Kent: I'm not saying you had one, because how would I know? But just in case you do.
Chris Knight: You slime!
Kent: It's your own fault, Knight. Didn't anyone ever tell you to make sure your optics are clean?
#naabhaprzrag, #sverubfr-000, #agi-fcbafberq, negvpyr[pynff*=' negvpyr-ary-'] { qvfcynl: abar !vzcbegnag; }
Paraphrasing: Dragon has junk in the trunk; we're all still ready to launch.
Proof that everyone loves a little junk in the trunk.
Yeah, but Jesus told him to stop playing with himself.
They've been fighting hard against science and technology for decades. They've been almost successful in destroying NASA. Now they have the private space industry in their sights. Expect someone to go to prison for attempting to advance science.
It is a good change to hear "hey we will delay the launch because our camera might be affected", from the old "- ehh, we should delay launch after that freezing weather, the O-rings might fail - shut up, we are already late, from what I see in this powerpoint it should be ok"
Violence is the last refuge of the incompetent. Polar Scope Align for iOS
The amount of practical metallurgy knowledge we have under microgravity conditions falls in the "Not A Number" section of a floating-point unit calculation result.
Assuming you have some "dust' - you have to purify it, and then convert the refined ore into a chemically neutral granular material that is compatible with electron-beam or infared laser spot heating/sintering. On earth, buy the refined metal from Grainger in whatever format its available (screws, bar stock, etc.) - reformulate it as a powder (preferably something very chemically stable, uniform, and with particle sizes compatible with the resolution of the final use). None of these have been performed on-orbit that I am aware of.
Second, its a leaky system, volatile chemicals (water and Nitrogen come to mind) are needed for many of these stages for buffering and chemical conversion (reduction/oxidation), transport, lubrication, mixing, heat-treating and quenching, etc. etc.
Also, we don't yet know the true relative abundance of the important ores vs. locations for collection, Lunar surface? Lunar drilling? Trojan "asteroids"? NEO objects? Or do we have to go beyond Mars to get any decent quantities of these raw materials.
One more item - if you do have a perfect NEO rock with a nice mix of Iron, Aluminum, Titanium, Cobolt, Copper, and Silicon, first you will need to break this up into manageable chunks. A hand pick and a canvas bag won't work. Jackhammer and auger drills will also fail if they cannot be anchored to something in order to generate force on an ore vein. Once its in small chunks, how do you refine it? Chemical refining, gas/vapor distillation, electric arc furnaces, and other standard tools for metallurgy are used in the presence of 1 standard G. Will the use of a centrifuge to approximate 1G conditions work - think tidal forces, shear forces, and other non-linear effects that will pop up to create inconsistencies in the local environment around the refining process.
All of the above can and should be solved, but won't unless we are _there_ and there to stay.