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Is the music they're playing during the countdown something identifiable? It's the kind of thing that's perfect for playing over and over for hours without getting repetitive.
Ten, nine, eight...
I can't believe I'm staying up to watch this, but it just might be history in the making.
If you have NASA TV on your cable/satellite feed its been on since about 11PM PST. Easier to stay up until about 1AM than it was 3AM :-)
Yaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaay!
I'm curious what they will do with the failed check valve from the previous launch.
Analyse the crap out of it to figure out how it passed q&a.
Only 25 minutes until launch! It's a shame this window is in the dark, but I'm sure it will be awesome to watch anyway.
The best thing about the first aborted launch? We get to see more of Ron Burgundy.
Failed means exploded. The first launch was aborted.
haha it's funny you mention that. I was thinking to myself 1 min ago that technically it's not a failed launch but an aborted one. thanks for pointing it out!
Not just technically. That was a _very_ successful test of their launch abort system and engine diagnostics. And of their ground crew for diagnosing and fixing it so quickly :)
The amazing thing for me was when one of their earlier launches aborted and they refueled and launched the same day. That's just obscene turnaround time compared to anything else that can reach LEO.

Apparently they couldn't do it this time due to the narrowness of the launch window, not because they couldn't be ready again in a few hours.

Any launch you can walk away from!
A great one is when you get to reuse the aircraft
Can I watch this webcast without flash player?
there are no live streaming without plugins, yet.

Unless you count Quicktime or WMP.

It works on iPad - they're using livestream.com which is the only service I've seen with a decent non-flash live-streaming service - I'm not sure why they don't have the option to serve that to other devices.
God speed. Let's make it happen tonight. Hopefully all systems go.
What is the white gas that comes out of the launch vehicle (pre launch)?
liquid oxygen after boiling
What is it for ?
The tank holds liquid oxygen, which is the oxidizer for the engine. Since oxygen is a gas at the ambient Florida temperature, it boils off all the time. A it boils off, the gas is released into the atmosphere, and the tank is replenished.
Strictly speaking the white `gas` is water from the delightfully humid Florida climate condensing in the presence of the extremely cold Oxygen boil off.
I'm loving the little human touches in the webcast.

"And the next day is... Hatch opening day!! YAY!!!" <Does the Happy Dance>

"Everything is, uh, go, so we're ready to rock'n'roll!!!"

I get the sense that the enthusiasm is completely unscripted.

Webcast team wiping away tears as the camera cuts back to them. Awesome.
So amazing to see this and experience the launch with them. You can tell how much energy, passion and personal sacrifice these people and their leader, Elon, put into this. It's absolutely beautiful to see. Real innovation, a true testament of our capabilities as human beings. Not a company with 800+ million users that can't even figure out the ad business. :) Congrats guys!
It is kind of sad that Facebook has a $100B valuation considering what SpaceX is doing, and plans on doing. One is just one particular web-profiles-and-chat service, not that hard or original. The other is frickin rocket science.
SpaceX is a revolution, not a business (yet). In our world, Facebook's data is more valuable than a revolution. But hey, we might not be dealing with just our world any more :)
SpaceX is a business. You can pay for one of their rockets if you have something to put in orbit.
wonder if some kind of permissions would be necessary(and whom to ask) to put something in orbit. Can I put my arduino based spy satellite in orbit?
It would depend on the laws of the country you launch from.
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Never will I post, on HN or anywhere else, anything that I cannot support with evidence. Thank you for correcting me.

My point isn't entirely moot though. I still think knowing things about almost a billion people, namely what & when they do things, has more proof of value today than these contracts. The cool factor doesn't necessarily mean money.

(What 'money' itself means and how it represents value is a totally different discussion)

SpaceX is selling launches on its rockets to commercial companies right now: http://www.spacex.com/launch_manifest.php

Moreover, this Falcon 9 launch was part of a commercial contract with NASA to provide supplies to ISS over the next few years (12 additional flights in addition to this demo). When someone signs a contract with you and gives you money in exchange for goods and services we call that business.

Unfortunately the majority sees it in other light - "ah yeah, another space ship, whatever, let me check what stupid photos my mates uploaded recently...". It's basically the society that's rotting, and FB just takes the profit.

Really reminds me the Idiocracy movie...

Thing is that facebook provides something of immediate utility. As exciting as this is there is not a lot we can do with it beyond go "ah! cool!"
A launch platform for mining asteroids?
Watching the webcast is exhilarating. Humans are fucking amazing.
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It's getting exciting. Imagine if the moon landings would be taking place with today's mass communication capabilities. Hope I can live through the next such event (heck even an asteroid would do).
+10000 points - your first extra-terrestrial check-in.

Buzz Aldrin is now the major of The Moon.

I can see it now, in like 10 years...

Foursquare: Elon Musk has become the Mayor of Mars.

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and it's lift off.
Oh man, I timed that perfectly :) woke up 10 minutes ago, click link just now - T - 25.

And away she goes

It was amazing to watch! I'm so happy to see it go smoothly so far. It means so much for the future of space exploration.

Way to go, Elon! If you can keep this up, history isn't going to forget you.

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Liftoff!!! Good luck SpaceX & Elon Musk