A comet from another star system is sweeping through our cosmic backyard and, for the first time, astronomers have picked up ...

Interstellar visitor 3I/ATLAS has just been subjected to one of the most sensitive alien-technology checks ever mounted on a ...

The waves' origin is unknown, so they hint at the existence of a new type of celestial object. The signal doesn't look like the kind that comes from stars, planets, or even dead stars. Mysterious ...

I/ATLAS was first discovered on July 1, 2025, it has garnered much attention, including speculation, hopes and fears that it ...

Mysterious radio waves emanating from the center of the galaxy have astronomers stumped. Four objects have briefly emitted radio signals that don't resemble any known type of star. Scientists think ...

The Breakthrough Listen Initiative, together with its network of collaborators, has undertaken observations of 3I/ATLAS using ...

Roughly a year ago, astronomers announced that they had observed an object that shouldn’t exist. Like a pulsar, it emitted regularly timed bursts of radio emissions. But unlike a pulsar, those bursts ...

Astronomers are flummoxed by a mysterious celestial object that appears to be releasing massive bursts of energy at regular 18 minute intervals. Like a lighthouse, the beacon is sending out radiation ...

While mapping radio waves across the universe, astronomers happened upon a celestial object releasing giant bursts of energy — and it's unlike anything they've ever seen before.The spinning space ...

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