Since Hubble is 20 years old a lot of shows have been paying tribute to the telescope and the images it has provided for the past two decades. Hubble has tought us so much about our own solar system, as well as given us an open eye to the cosmos.
Just finished watching a show about our solar system and I realized for the first time how incredibly imortant the gas giants are for our survival. What if Shoemaker-Levy had collided with Earth instead of Jupiter? Well, I don't think we need to ask. The gas giants swallow all sorts of crap that would destroy the fragile life on Earth if it would impact it.
I love the gas giants (oh, and Hubble of course :-)