Tuesday, May 5, 2009
Beautiful picture snapped by Cassini, still orbiting Saturn, still waltzing amid the moons and rings. It does a fly-by of Titan in four and a half hours, according to the Cassini site.
I read recently that NASA uses Titan to make changes in Cassini's orbit. The fly-bys change Cassini's trajectory, and allow NASA to swing it pretty much wherever they want. That's how they got it to fly through the vapor plume on Enceladus last year. Quite cool.
That's Titan in the background, tiny Epimetheus in the foreground.
The picture is from the Astronomy Picture of the Day.