Radio Waves

Models of the universe predict that supernova remnants should be far more common than they are. Now, a new image from sensitive radio telescopes reveal that the missing remnants are hiding in plain sight.

By modifying an off-the-shelf Wi-Fi router with a firmware update and using a deep-learning algorithm, scientists have been able to detect breathing patterns that indicate respiratory distress in a medical mannequin.

A highly sensitive, next-generation radio observatory has started to come to life, with construction now officially underway on the Square Kilometre Array (SKA), a dual-site science facility located in Australia and South Africa.

While many dog (or cat) owners would like to know what their pet does all day while left home alone, they don't necessarily want a bunch of cameras placed inside their house. The PetTrack system offers a less intrusive alternative, as it keeps tabs on pets via radio signals.

Astronomers have detected an extremely strange radio signal from a distant galaxy that pulses with a heartbeat-like rhythm. This signal lasted about 1,000 times longer than other fast radio bursts, and had a clear periodic pattern to its pulses.

Astronomers have discovered a bizarre radio signal in our galaxy that can’t be explained by any known object. When active the source gives off radio bursts lasting a minute, every 20 minutes, which should be impossible based on what we know about it.

Astronomers have discovered strange radio signals that could be coming from unseen planets. Models suggest that interactions between the magnetic fields of planets and their host stars produce radio emissions – a new potential way to detect planets.

Researchers have demonstrated a new approach to harnessing the power of ambient radio waves, developing a novel chip that can convert Wi-Fi signals into power for a small LED, and possibly other small electronics and sensors.

The mystery of fast radio bursts may be closer to being solved. Astronomers studying a repeating signal from a nearby galaxy have detected radiation at the lowest frequency of any FRB found so far, providing new potential hints about their origin.

Even though at-home use of an inhaler or insulin pen can be extremely important, doctors have to pretty much just hope that patients are doing it right. A new system, however, could objectively assess patients' technique within their homes.

By studying the twinkling of stars, astronomers in Australia have discovered a huge cloud of cold gas in our galaxy, not far from Earth. This invisible mass could provide new hints about where to find the universe’s missing matter.

NRAO has announced a new addition to NASA’s upcoming moon-shot Artemis program. From the silent skies on the far side of the Moon, the DAPPER spacecraft will listen out for radio signals from the cosmic “Dark Ages,” before the first stars fired up.