It's strange to think that in fifty years of manned spaceflight, NASA has only ever built four types of spaceship: Mercury, Gemini, Apollo, and Shuttle. The Shuttle had a good run. It was both technically awesome and in many ways ridiculous and pointless. Anyway, time for the future now.
It was a horrible failure. It was projected for 75 launches a year at about 25M$ (thats million dollars, not a software company in Seattle) per lauch from 1977 until the late eighties when it was scheduled to be replaced by something better. Instead it was 135 launches in 30 years at 1.6G$ per lauch, and it totally crippled NASA's capabilities to develop a replacement.
you may want to change G to B. In the United States, where dollars are used, G is more likely to mean "Grand", or 1k. B would be billion. Or, when all else fails, just type it out.
Things like kUSD or M$ appear to have come from science - it's putting an SI prefix to a unit. Personally, when I write M$, I mean one megadollar, not 1 milion dollars.
Agreed. Though we do sometimes write $5M, which is functionally equivalent. I've noticed in internet communication, it's common to say a numeral before the dollar sign. For example, "You're going to end up spending 100$ on that".
In this case it is, but it isn't in others (like kUSD or G$).
Oh, I always thought that you write a numeral before the dollar sign... Thanks for pointing that out. It differs between currencies - for example, british pounds are written before numeral (£42), but polish złoty are written after (42zł).
