HASI has been partly developed researchers at the Finnish Meteorological Institute (FMI). So, to celebrate the arrival of the Cassini spacecraft at Saturn, I'm showing the flag of Finland here. (By the way, the Finnish flag at Wikipedia uses a too dark blue color. The flag shown here is nearer the correct version, at least on my screen.)

Dan Gillmor celebrates In Saturn's Orbit: "Congratulations to the teams from several nations who successfully put the Cassini-Huygens spacecraft into Saturn's orbit for an exploratory mission. Wonderful pictures, brilliant engineering, a boon to science -- as good as this gets."