In addition to Chicago’s Wizard World Comic-Con, this week brings us thought-controlled robotic exoskeletons, a year-long experiment in Martian living conditions, and forget 3-D printed guns and cars. We’ve got lattes with personalized images on the foam, a really big space camera, a Star Wars conveyor belt, and PAX Cosplay:

Printable latte foam:

A camera for showing, my god, just how full of stars it is:

Star Wars Conveyer Belt

Cosplay from PAX, Seattle: