Diving for Coral-bots to repair the world's dying reefs

A new Kickstarter campaign hopes to fund autonomous underwater robots that will navigate the depths to repair threatened coral reefs. Head underwater at the Great Barrier Reef with Google Maps, and you'll notice something deeply saddening: instead of the vividly colored corals you would expect, vast swathes of the reef are dull brown -- dying, thanks to pollution, fishing, and climate change.

Kickstart a 3D-printed robotic hand

A Kickstarter campaign is raising funds to get an ultracheap 3D-printed robotic hand into production. (Credit: Christopher Chappell) If you're missing a hand, getting a replacement isn't exactly cheap. The BeBionic -- which is, admittedly, a higher-end model -- can cost up to $35,000.