Observations of a pulsar, consisting of a dead star spinning 600 times a second, and feasting on a stellar companion reveal ...

By leveraging the concept of chirality, or the difference of a shape from its mirror image, EPFL scientists have engineered ...

An international team of astronomers has uncovered new evidence to explain how pulsing remnants of exploded stars interact ...

Radio astronomers have detected radio pulses from a source that appears to send a signal in our direction every 14 minutes, ...

Abstract: This letter presents a reconfigurable polarization converter employing a metasurface with liquid crystals (LC) to convert linearly polarized (LP) waves into either left-hand circularly ...

This study presents a design for a millimeter-wave reflectarray (RA) with simultaneous polarization and beam direction control. A dual-polarized unit cell (UC) based on liquid crystal (LC) material is ...