Radio

Astronomers have taken a close-up image of a jet emitted by a supermassive black hole for the first time. The Event Horizon Telescope has zoomed in on the jet with 16 times the resolution and at 10 times higher frequencies than previous observations.

Japanese astronomers have discovered the echoes of a “dying” supermassive black hole. While the object is quiet now, the team spotted the signatures of two huge radio jets that indicate it only recently fell silent after a bright, active phase.

Astronomers are another step closer to solving the intriguing cosmic mystery of fast radio bursts. Five signals have been traced to their points of origin within the spiral arms of galaxies, narrowing down the list of suspects behind them.

Swim coaches have a difficult job, as they have to shout in order for swimmers to hear them – and even then, they still may not be heard. The Sonr system is designed to address that problem, using one-way radio communications.

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.

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.

In September 2020, astronomers announced the discovery of phosphine in the atmosphere of Venus, a possible sign of life. But a new study has found that a different gas could explain the signature – one that's more common and doesn’t indicate life.

Astronomers have captured stunning new high-resolution radar images of the Moon, using an experimental instrument on a ground telescope. This proof of concept test paves the way for a more powerful radar telescope that could see as far as Neptune.

With the mystery of fast radio bursts looking increasingly solved, astronomers need a new cosmic conundrum to ponder. And right on cue, a brand new noodle-scratcher has emerged from the depths of space – meet “odd radio circles,” or ORCs.

3D maps of our galaxy created by the Japanese VERA radio astronomy project indicate that the Earth is 2,000 light-years closer to the center of the galaxy and traveling 7 kilometers per second faster than previously estimated.

Sweden's Teenage Engineering already has a bit of a rep for out-of-the-box-thinking, but is perhaps best known for its digital instruments. Now the firm has added a radio into the mix for the Ortho Book 4.

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.