No joke here! Just the last few years, all these new discoveries just in our own solar system.drbill:I think of the astronomy class I taught in the early 1970's. Many of the "facts" we "taught" (forced our students to memorize) would need revision!
-bright red and blue rings around Uranus
-10th "planet" bigger than Pluto (barely)
-Titan's methane mush surface
-yet MORE jovian and saturnian satellites
-water ice on Mars
I'm sure the new Venus and upcoming Mercury probes will find new stuff too. We'll have to wait a while for the Pluto Express to reach ITS destination. And that big asteroid probe's gonna take some SWEET pictures.