Reply to post: Re: Excellent work!

Sun's out, guns out: Plucky Philae probot WAKES UP ... hits 'snooze'

David Webb

Re: Excellent work!

Yeah, cost is a huge issue, it costs a (scientifically speaking) metric shitload of money to put stuff in space, having a load of cheap stuff going up means weight, and weight means cost, so having one more expensive bit of kit which will most likely work (as long as you use metric and just metric, not metric and imperial) means you're not wasting a lot of cash getting stuff up.

Just getting an object into low earth orbit costs between $5-10k per kilo, according to the ESA, total mass of Rosetta was 3,000kg, at todays prices (lil bit more expensive 10 years ago) that works out at $30,000,000.

Of course, if you could invent a propulsion system that doesn't require burning off fuel in space, you could reduce that cost by over 1/2 (fuel for Rosetta was 1,670kg) and THEN you can send up a bunch of cheap shit which probably will refuse to even bother starting at -34C, let alone sit in space at temps that are a bit colder than "ahh bit chilly out there", knowing, in the back of your mind, it cost you $10k per kg of useless crap out sent up into space.

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