radio astronomy
Scientists Capture Best Images Yet of Unexplained Ring Structures in Space
Odd Radio Circles (ORCs), which stretch across more than a million light-years, have perplexed scientists for years.
Scientists Uncover Important Clue in Mysterious Radio Signals From Space
A key signature in the light of fast radio bursts could help identify the sources of these enigmatic flashes from deep space.
A Mysterious Radio Signal From Space Is Repeating Every 18 Minutes and 18 Seconds
The unidentified radio source could be a type of dead star that’s never been observed before.
Something Unexplained Is Sending Radio Signals From Our Galaxy's Center
The newly discovered signals flash for weeks at a time and can stop in just a day, a pattern that has no clear explanation.
A Signal from Space Is on a 16-Day Cycle. Scientists Just Ruled Out an Explanation
Never-before-obtained observations of a periodic fast radio burst revealed surprising results that have upended expectations.
Scientists Spot Yet Another Unexplained Ring-Shaped Radio Structure In Space
A new Odd Radio Circle (ORC) appears to span a million light years, and contains a clue that could explain these ghostly structures.
Arecibo Observatory, an Icon of Science and Pop Culture, Has Collapsed
After 57 years of service to the astronomical community, the Arecibo Observatory collapsed on Tuesday, sparking widespread grief.
Scientists Discover Unexplained Glowing Circles of Energy in Space
Scientists believe they have likely discovered a new and unexplained class of space object: the Odd Radio Circle, or ORC.
NASA's Plan to Turn the Moon Into a Telescope Looks Like the Death Star
A newly funded concept envisions a kilometer-wide radio telescope built inside a crater on the far side of the Moon. Whoa.
Scientists Have Detected the Biggest Explosion Ever in the Universe's History
A supermassive black hole's eruption blasted for hundreds of millions of years, making it the biggest explosion ever detected since the Big Bang.
The Next Generation of Super-Sensitive Alien Hunting Telescopes Is Coming
Scientists are building enormous new radio arrays capable of hearing leaks from alien broadcasts, if they exist.
Scientists Found Breathable Oxygen in Another Galaxy for the First Time
Molecular oxygen is a key component of the air humans breathe, and now astronomers have spotted it a half-billion light years away. But don't hold your breath for quasar whippets.