The robotic turtle above can't wield katanas, eat pizza or shout cowabunga, but it can still do something awesome: draw big sand sketches on the beach. It's named "Beachbot" and was developed by a ...

Michelle Starr is CNET's science editor, and she hopes to get you as enthralled with the wonders of the universe as she is. When she's not daydreaming about flying through space, she's daydreaming ...