And since we're talking science today, here are some links I've collected lately:
Dolphins are the first mammals to sense electricity.
Glimpses of Roman culture, via Pompeii. If you're a Pompeii nut, you've probably heard most or all of this. If you're not, read on!
Map of all the water in the solar system.
And more links, this time with a comic book theme!
First Avengers concept art
Timeline of the Marvel movieverse
What comics could learn from superhero movies
How much does it cost to run a science lab?