Contextualizing speed and distance helps set expectations. Around perihelion, 3I/Atlas is moving at roughly 68 km per second. Its closest approach to Earth is about 1.8 AU, near December 19, which is ...

NASA's Double Asteroid Redirection Test (DART) impacted the 'moonlet' Dimorphos in the Didymos asteroid system. The Les Makes ...

The interstellar visitor posed no threat to our planet, but experts thought it could fight dangerous asteroids looking to ...

Physicist Michio Kaku says interstellar object 3I/ATLAS may reveal signs of intelligent life if it gains energy near the Sun.

An astronomer in Italy caught a fortuitous image of the bright comet Lemmon seemingly entwined with the glowing trail of a ...

Contrary to allegations that 31/ATLAS is potentially hostile alien tech, the Manhattan-sized comet could provide potentially ...

As 3I/ATLAS approached the inner solar system in September, the Nordic Optical Telescope in Spain's Canary Islands recorded a ...

A rogue visitor from deep space, Comet 3I/ATLAS, has put NASA on alert after its trajectory and behaviour shifted ...

NASA has activated its planetary defence network to monitor comet 3I/ATLAS, a rare interstellar object showing unusual ...

The comet, called 3I/ATLAS, is the third known interstellar object that has come through our solar system. As it flies deeper ...

C omet 3I/ATLAS is the third known interstellar object to cross the Solar System, and in a matter of days it will pass the ...

The chemical signatures we're observing may reflect both the comet's ancient origins and its long journey through ...