From the front lines of the Cold War to the trenches of Ukraine, archival photos tell the story of Radio Free Europe, which ...

What happens when a relic of the early Space Age unexpectedly outshines the cosmos, even for a fleeting instant? In June 2024 ...

Astronomers studying a distant galaxy cluster stumbled upon ancient radio signals that might hold clues to the formation of ...

A communications satellite out of commission since 1965 is chirping at the Earth in radio frequencies. What is happening? We ...

Radio frequency fingerprint identification (RFFI) is a promising physical layer security technique that employs the hardware-introduced features extracted from the received signals for device ...

The prior record holder, Abell 2255, spans roughly 16.3 million light-years. Record-Breaking Radio Halo Found Deep in the cluster’s central region, the team detected a radio halo approximately 11.4 ...

The global Radio Frequency Beauty Equipment Market is estimated to be valued at USD 553.2 million in 2025 and is projected to reach USD 1,488.3 million by 2035, registering a compound annual growth ...

We demonstrate a photonic-assisted broadband radio frequency (RF) channelization scheme based on dual coherent optical frequency combs (OFCs). The advantages include coarse optical alignment ...

Radio astronomers use completely different techniques to watch objects within the radio-frequency spectrum. Instruments might simply be pointed at an active radiator to investigate its emission. To ...

Using the Low Frequency Array (LOFAR), European astronomers have investigated a galaxy cluster designated CIZA J2242.8+5301, dubbed the Sausage cluster. The observations conducted at very low ...