SOME time ago (NATURE, Sept ... made the suggestion that the great heights of these rays might perhaps be explained by assuming that the sun's radiation pressure pushes away the upper atmosphere ...

These models are crucial for interpreting observations from missions like the Parker Solar Probe, which is measuring cosmic rays closer to the Sun than ever before. The probe has revealed ...

Cosmic rays coming from outside the Solar System bring these particles closer to the Sun, where they experience changes ...

Also read: Funny texts from teens lead to book deal for Maine dad When the sun's rays enter a raindrop, the light is refracted out of the raindrop to the viewer. Larger raindrops create brighter ...

Given that 5.5 micrograms of the vitamin are estimated to ingested daily through food, ultraviolet rays from the sun are required to provide the other necessary 10 micrograms of vitamin D.