NASA Adapts Navy's Spinning Device for Astronaut Training.

NASA is using a "disorientation device" called the Kraken to simulate different types of flight and study how to ease astronauts' motion sickness during spaceflight. The device can simulate complex flight scenarios that are difficult to recreate on Earth, including landing scenarios that could induce vertigo and nausea. After a 60-minute ride aboard the Kraken, 24 volunteers will perform prescribed head turns and tilts while wearing video goggles to track their head and eye movements. The study will determine what head movements, if any, help astronauts to quickly recover their sense of balance.