Top 10 Science Fiction Disappointments Of The Past Decade, in part because I sympathize (not to say I've even seen all of these) -- but mostly because I can't resist this image.Top Ten Tech Stories for the Decade, because, well, I'm a computer guy as well as an SF enthusiast.
The Top 10 Science Stories of 2009 [Slide Show], from Scientific American.
SFcrowsnest Fantasy, Horror and Science Fiction Books Chart, from across the pond (and, I'll modestly disclose, a book of mine is well-placed in the list).
From National Geographic, Top Ten Space Finds of 2009: Nat Geo News's Most Viewed.
From Space.com, 9 Astronomy Milestones in 2009.
And finally, not exactly fitting the theme: Stars Find Fountain of Youth Via Vampirism and Collisions, because, really, how could anyone resist?