When interstellar visitor 3I/ATLAS exhibited some peculiar movements, speculation arose regarding potential alien origins.

This comet could be part of the Kreutz family and is expected to flare dramatically as it sweeps past the Sun.

The throng of spectators, including famed airplane designer Sir Geoffrsey de Havilland, heard the earsplitting shriek before they saw the sleek, bullet-shaped aircraft burst out of the mist and hurtle ...

NASA and SETI experts scan interstellar visitor 3I/ATLAS for alien 'technosignatures' as scientists say the 137,000mph object is a natural comet.

When Comet 3I/ATLAS swept through the Solar System in late 2025, astronomers quickly confirmed one extraordinary fact: it was not from here. Only the third known interstellar object ever observed, the ...