Radio

Almost three years after the event, neutron scans by the Oak Ridge National Laboratory have uncovered the cause of the platform collapse that resulted in the destruction of the 1,000-ft (300-m) Arecibo Observatory radio telescope.

One day on Mars is about 37 minutes longer than an Earth day – but it seems both planets are working to fix the gap. Data from NASA’s InSight lander have revealed Martian days are getting ever so slightly shorter, and scientists aren’t sure why.

Astronomers have detected a radio signal that blares for several minutes at a time, every 21 minutes, and has been doing so for at least 35 years. This bizarre signal doesn’t fit any known object without some major revisions to current physics.

Radio telescopes are picking up strange signals from an intelligent lifeform – ourselves. A new study has shown that satellite constellations like SpaceX’s Starlink swarm are unintentionally leaking signals that can interfere with vital observations.

San Francisco-based tech company Somewear Labs has taken the wraps off a pocket-sized military multi-networking communication device called Node that can automatically switch between internet-like mesh radio and satellite communications.

A new study suggests that if any alien civilizations are turning their radio telescopes toward Earth, they may be able to not only detect our mobile phone signals, but could deduce a lot about our planet and even produce crude maps of it.

Over the last 15 years astronomers have detected hundreds of unexplained radio signals from space – fast radio bursts (FRBs). Now a fresh look at radio telescope data has doubled the number of known sources, bringing us closer to solving the mystery.

The search for extraterrestrial civilizations gets a major boost as SETI joins forces with the Very Large Array (VLA) that combines the giant radio telescope with a new processing system to increase the search's effectiveness by a factor of 1,000.

In 2019 we got the first-ever direct image of a black hole, which resembled a fuzzy, orange donut. Now the team has refined the iconic image with the help of machine learning to produce the highest resolution image possible with the original data.

Astronomers have reclassified a radio galaxy in the sky after it was found to have redirected a jet of radiation straight towards Earth. This marks the first observation of a reorientation so dramatic that it changes the category a galaxy fits into.

If you could zoom way out to look at the universe at its largest scale, you’d see that it’s made up of a colossal cosmic web. Now, astronomers have detected shockwaves moving through this web, providing new insights into large-scale magnetic fields.

The chances are incredibly small that Earth is the only planet with life. A new AI system has scoured millions of radio signals from space to identify any with potential artificial origins – and discovered eight signals that look intriguingly alien.