'Backward and upward and tilted': Spaceflight causes astronauts' brains to shift inside their skulls

A grayscale side view of an image of the brain with patches of darker and lighter gray areas.

Spaceflight doesn't just change your perspective — it shifts the actual position of your brain inside your skull, a new study reports.

Many of us know about the famed "overview effect," which describes how a trip to the final frontier changes how astronauts view the world and their place in it. But the new study focused on the physiological rather than the philosophical.