Well, we've all made it through the week. Our reward? An eyeball-centric This Week in the Future, which will raise eyebrows and secure eye-glances for the lucky PopSci reader who wins this week's free t-shirt.

Want to win this eye-catching Baarbarian illustration on a T-shirt? It's easy! The rules: Follow us on Twitter (we're @PopSci) and retweet our This Week in the Future tweet. One of those lucky retweeters will be chosen to receive a custom T-shirt with this week's Baarbarian illustration on it, thus making the winner the envy of their friends, coworkers and everyone else with eyes. (Those who would rather not leave things to chance and just pony up some cash for the t-shirt can do that here.) The stories pictured herein:

And don't forget to check out our other favorite stories of the week: