Lacking so far is direct scientific proof that wearing ultraviolet-blocking contact lenses will prevent long-term eye issues.

WSJ: Contacts Lenses That Let In Sun, But Block UV Rays

The Far Ultraviolet Imaging instrument is collecting the first-ever images from space of the Earth's proton aurora.

BBC: Atmosphere Nasa

Gamma-rays are the most energetic form of light, with wavelengths far shorter than ordinary optical light (the light your eye can see), or even ultraviolet or X-ray light.

CNN: Why gamma-ray burst shocked scientists