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The Event Horizon Telescope (EHT) collaboration, with a substantial contribution from the Max Planck Institute for Radio Astronomy (MPIfR), has unveiled new, detailed images of the supermassive black ...

Pope Leo XIV sits with Elise Allen, senior correspondent at Crux, for an interview at the pope's residence inside the Vatican's Palazzo Sant'Uffizio July 30, 2025. (CNS photo/courtesy Crux) “I’m ...

The researchers unveiled the radiation secrets of PSR B1937+21: the linear polarization degree of the main pulse decreases as frequency increases, while the interpulse shows the opposite trend; the ...

The nature of different antenna polarizations. Circular polarization and its properties. Where to apply linear and circular polarizations. How to measure and analyze circular polarization. When using ...

Abstract: Polarization is a fundamental property of light and plays an important role in a wide range of optical phenomena and applications. While many earlier studies of metasurfaces have primarily ...

Fast radio bursts (FRBs) are a kind of energetic cosmic radio burst. Though their duration is usually at millisecond scale, their energy (estimated isotropically) reaches 10 ^36 ～10 ^41 erg, ...

Abstract: A circular polarization (CP) folded reflectarray antenna is proposed at the 30 GHz band. A five-layered circular polarization selective metasurface (CPSM) is introduced to realize the path ...

Ronda Kaysen interviewed several researchers and spoke to 20 recent movers. Ethan Singer analyzed millions of detailed voter registration records. Joshua Fisher is a Democrat. Ryan Troyer is a ...