A new metasurface design lets light of different spins bend, focus, and behave independently—while staying sharp across many ...

You can tell a lot about a material based on the type of light shining at it: Optical light illuminates a material's surface, ...

The current image of Mars as an arid and hostile desert contrasts sharply with the history revealed by its surface. Channels, minerals altered by water, and other geological traces indicate that the ...