Traveling to space poses many risks to the human body. Since NASA wants to send a manned mission to Mars in the 2030s, scientists need to find solutions for these hazards sooner rather than later.
Using MRI scans of 30 astronauts, the researchers built on those earlier studies to discover that the longer the spaceflight, the greater the increase in brain fluid volume.
Among the key spaceflight milestones we're most eager to see in 2018 are - Falcon Heavy flies, Block 5 booster, LightSail 2 and launching to Mars.
A new study provides some of the first data on the changes in brain structure during spaceflight. Scientists found decreases in some gray matter areas and increases in gray matter volume for regions of the brain that control leg movement.