Space radiation

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

Laser-sail experiments test a route to nearby stars, while research reveals major barriers to interstellar missions.

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

Space Earth’s magnetic poles once took 70,000 years to reverse Joseph Shavit