FANTASTIC VOYAGE: This start-up is building tiny injectable robots to attack tumors. “Backed by $20 million in venture capital funding and building off recent advances in robotics and precision manufacturing, the Culver City, Calif., company is developing a device the size of a breadcrumb that doctors can insert into the spine or skull and magnetically steer to a target to deliver a precise dose of drugs. The plan is to move to clinical trials by 2023.”

No Raquel Welch?