Space radiation

Space Humans may not have the heart for space travel to Mars

A rat study found cardiac fibrosis and persistent immune changes after simulated spaceflight stresses, with limits for human predictions.

Space Interstellar travel faces steep hurdles, but recent research is paving a new path to the stars Joseph Shavit

Health Future Mars astronauts may need eye surgery millions of miles from Earth Joseph Shavit

Space Astronomers discover why solar winds gradually slow down on their way out of the solar system Joshua Shavit