Astronomers studying the interstellar object known as 3I/ATLAS say new observations from the Gemini North Telescope in Hawaii ...

Astronomers have been scanning the skies for alien radio signals for decades, but so far they’ve heard nary a peep (with one possible exception). But according to a recent study, that could be because ...

An extraordinary visitor from beyond our solar system, the interstellar comet 3I/ATLAS, is baffling scientists as it streams out carbon-rich chemical compounds at a rate rarely seen in our own cosmic ...

The vast, seemingly empty gulf of space occasionally tosses us a gift — a visitor from beyond the confines of our own Solar System, a true cosmic stranger. These interstellar travellers are the rarest ...

For only the second time ever, a collision between two asteroids has been observed around an alien star not too far beyond ...

I do so love an ostentatious comet. As I wrote in a recent “The Universe” column, when these dusty ice balls are billions of kilometers from the sun, they’re frozen solid. But as they near our star on ...