This softball-sized eyeball washed up on the shore in Pompano Beach, Florida this Wednesday. Scientists aren't sure what animal it belongs to, although they note that giant squid often have eyeballs this large or even larger, and that it is not uncommon for them to become unattached. Other possibilities include a huge swordfish or marlin. Read more here.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.