Public awareness and curiosity about stories in the news are good drivers for searching and evaluation. I first heard about the "beatless heart" on public radio and then yesterday a number of high profile news sites carried the story.
The first "beatless" heart experiments were done on a calf whose heart was removed and replaced with two centrifugal pumps.
Here are a few search challenges that can be spun off of the story.
Post your answers in comments.