From KurzweilAI.net, some bleeding-edge science news and speculation:

Freeman Dyson has an interesting—and though I respect him, I feel, not wholly convincing—argument for space exploration.

Fish oil may be good against Alzheimer’s disease!

Wired reports on a useful new biolaser for looking inside cells, which may help us figure out how the hell stem cells work.

And NASA engages in a little fun speculation about what a Martian mission might look like in the future, and reports on the current state of automated exploration. Which, if you ask me, is really the way to go for now.