Optically controlled metasurfaces for dynamic dual-mode modulation

Dynamic control of terahertz (THz) waves at will with an ultra-compact device is important for THz technologies in biomedical imaging, telecommunications, detection, and beyond. However, tunable THz devices made of conventional ...

China space station crew completes spacewalk

The crew of China's orbiting space station has completed the first of several planned spacewalks of their six-month mission, pushing such activities into the realm of routine for the country's astronauts.

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