Abstract: Near-field wideband communication systems, empowered by extra-large scale antenna arrays (ELAAs), face a fundamental challenge: the spatial beam split effect due to frequency-flat analog ...

China's Wide Field Survey Telescope has captured an amazing view of the Andromeda Galaxy (M31). Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by Steve Spaleta Thomas ...

"This is something we've never seen in stars that are analogs of stars in the early universe." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Abstract: Covert communication ensures reliable communication with a legitimate user while preventing a warden from detecting the behavior of transmission. Most of the existing literature on covert ...

As a wave of protests swept across Iran last night, the internet was completely shut down. I have no idea what is happening to my friends, my family, or anyone else. My best friend Champ was at the ...

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old as time itself. By Katrina Miller The universe continues to surprise those ...

China's Wide Field Survey Telescope has captured an amazing view of the Andromeda Galaxy (M31). Credit: Space.com | footage courtesy: China Central Television (CCTV) | edited by Steve Spaleta Trump ...

Add Yahoo as a preferred source to see more of our stories on Google. File photo of a Montville police cruiser. Police said an investigation was underway on Tuesday after a body was found. (Hearst ...