Particle beams like protons and heavier ions offer improved dose distributions compared with photon (also called x-ray) beams and thus enable dose escalation within the tumor while sparing normal ...

The European Space Agency's Swarm mission detected a large but temporary spike of high-energy protons at Earth's poles during a geomagnetic storm in November. It did this not with the scientific ...

Assessing the risk: RBE-weighted dose distributions (upper panel) and corresponding bone cancer risk distributions (lower panel) in the prostate (upper red contour) and seminal vesicles (lower red ...

An international collaboration of scientists say it’s safe for astronauts to fly to Mars and back, provided the length of the mission does not exceed four years and that crewed flights to the Red ...

Radiation-transparent body coil 3D model of the RF coil with a human voxel model. In this birdcage configuration, all capacitors (green circles) are located in the end rings of the RF coil, leaving a ...

A new study shows that electrons in the radiation belts can be accelerated to very high speeds locally. The study shows that magnetosphere works as a very efficient particle accelerator speeding up ...

Explore the challenges of human radiation exposure after a year in space and how research on cosmic rays shapes future missions. NASA astronaut Scott Kelly spent a year in space while scientists ...

Space flight conditions within the protection of Earth's gravitational field have been shown to alter immune responses, which could lead to potentially detrimental pathology. An additional risk of ...

NASA astronaut Scott Kelly spent a year in space while scientists monitored changes in his body, as well as that of his twin, Mark Kelly, who remained on the ground. Kelly came back to Earth in good ...