It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

The unusual behaviour of interstellar comet 3I/ATLAS has reignited online debate, but astronomers say the gaps in public ...

When astronomers first spotted a faint, fast-moving object racing through the outer Solar System in mid-2025, few expected it ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Discovered in July, 3I/ATLAS is not your average comet – it’s a giant snowball from beyond our solar system. The comet, ...

Harvard astrophysicist Avi Loeb is one of the biggest proponents of the theory that the comet was sent by an alien ...

Breakthrough Listen searched for technosignatures from interstellar comet 3I/ATLAS but found no unusual signals or behavior ...

SCIENTISTS are scratching their heads as 3I/ATLAS reaches its closest point to Earth, but it’s not behaving like a typical comet. On December 19, 3I/ATLAS is expected to come within 170 ...

Interstellar Comet 3I/ATLAS makes its closest Earth pass early on Dec. 19. Here's what astronomers know about its origin and speed.

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

Researchers used the Green Bank Telescope to study the interstellar comet and found that it exhibits typical cometary behavior, with no unusual features detected ...

In July, researchers using the NASA-funded Asteroid Terrestrial-impact Last Alert System survey telescope in Chile made an ...