Re: when giving figures like this
Mephistro,
a′) If a Commentard of Very Little Brain (like me), who Thinks of Things in US customary units and short-scale enumeration, can equate kilo- with thousand, mega- with million, giga- with short-scale billion, and tera- with long-scale billion — no arithmetic involved, only synonyms — then any other reader here could do so too.
b′) It’s not unknown in the States to call a unit of one million dollars a “megabuck”. It wouldn’t be too strenuous to extend that to “gigabucks”, “terabucks”, &c. Freakishness is, of course, in the eye of the beholder.
c′) The linked ESA blog entry noted that it was “1×10^13 kg” — i.e. 10 Pg = 10 Gt = 10 billion (short scale) tonnes.