SpaceX's Falcon 1 Destroyed During Maiden Voyage
legolas writes "SpaceX's Falcon 1 is the world's first privately funded satellite launch vehicle. After a successful static engine test on Wednesday, it was launched today. Unfortunately, the rocket was destroyed shortly after launch."
Sounds a bit like the early days of our space program.
And to add insult to injury, we'll link your web server from Slashdot.
Seriously, Elon. Good on you. SpaceX is doing something risky and interesting. Make as many mistakes as it takes to get the job done. Unlike NASA, the bulk of your funding comes from a free market, and you're therefore motivated to learn from your mistakes. The day you build something your investors are willing to let you slap a "man-rated" label on, I'll be in line with tickets to fly on it.
$6 Million rocket. $800,000 payload. The cost of the payload is pretty small, all things considered. It's worth the risk to go ahead and fly the payload the first time. Saves you $5 million if it works, and cost you less than $1 million if it fails. ...and when you add in that everything's going to be insured, it makes finantial sense.
Just as bizarre was that they had a payload on their first launch attempt.
The payload cost hundreds of thousands of dollars, true, but lifting it into orbit costs millions. As long as they had a better than 10% chance of success, it was a good risk to take.
Also, a large part of satellite cost is in the R&D, so if there are further funds, then building a duplicate would cost a fair bit less than the first one, right?
That is why demonstrated reliability cannot be replaced by calculation. Spacex bragged about their high reliability but it is all on paper. Successful rockets have tens of thousands of hours of debugging of problems built into them. You just never see it. Nothing can replace hours in the air. And they come slowly and at great expense.
Elon is now going to learn firsthand why spaceflight is so damn expensive. It is not the lack of innovation or intelligence at Lockheed Martin or Boeing- it is the brutal reality that nature imposes on lack of attention to detail and ignorance. It ain't the metal in the rocket - its the know-how in the people. We have to dig down to root cause on even the most innocuous anomaly - hence we know a lot more about flaws in parts than damn near anybody on the planet. But this knowledge is pricey.
For manned interplanetary and interstellar travel, it's not so much that we can make a reasoned argument against it, we don't even have a hint of the physics needed to make it work; current reactor, propulsion, and shielding technologies are many orders of magnitude away from what they would need to be for manned travel.
Say again? Interplanetary travel is quite well understood. It'd take some months but hardly out of reach. Now interstellar is a completely different ballgame. The solar system (diameter of Pluto's orbit) is about 80 AU wide, the nearest sun is 272000 AU away.
It's a different thing for unmanned interstellar travel: technologically, if we devote enough resources to it, we can probably send a small interstellar probe to a neighboring star system within the next century--it would be hugely expensive, but feasible.
As in arrive in the next century? Nope. With current tech we're talking about 75000 years or so. Even the most theoretical scenarios I've seen using ungodly amounts of antimatter as fuel takes about 20 years.
Actually, I think the most likely path to manned space exploration is to reengineer people: radiation hardening, hibernation, vacuum resistance, and changes to the skeletal system, among others. If you do that well, you could send people in small pods and they might be able to work when they arrive. But I give it a century before people overcome their squeamishness to permit genetic engineering with people, and another century to do it. But you and I are never going to set foot on another planet.
Interplanetary I don't see any reason why we couldn't do today. As for interstellar, I think it's far more likely we'll not actually send humans per se. Even with all the genetric modifications you suggest, sending humans is horribly inefficient. I think we'd send fertilized eggs and artificial wombs, or even just a DNA sequencer to do it on-site.
Live today, because you never know what tomorrow brings