A relic from the beginning of the galaxy has finally come out of the sun's shadow. It gives us a rare look at a cosmic history that goes back before our own world. In November 2025, the interstellar ...

Scientists baffled as 3I/ATLAS displays sun-locked jet with odds of natural alignment near zero As the winter solstice approaches, Earth is preparing for a brush with a high-speed traveller from the ...

As the winter solstice approaches, Earth is preparing for a brush with a high-speed traveller from the furthest reaches of the cosmos. On Friday, 19 December, a gargantuan space object that has ...

As the comet heads toward its closest pass by Earth, a team led by NASA astrochemist Martin Cordiner used the Atacama Large Millimeter Array (ALMA) in Chile to study the gases streaming off its ...

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 ...

NASA's highly anticipated comet 3I/ATLAS images have been released, with a space agency official shooting down alien rumors and stressing that the interstellar visitor is a comet. When you purchase ...

The images were captured by the High Resolution Imaging Science Experiment (HiRISE) aboard the Mars Reconnaissance Orbiter (MRO) on Oct. 3, when the comet passed within about 18 million miles of Mars.

Is 3I/Atlas an interstellar alien vessel or simply an intriguing, unique rock hurling through the cosmos? That debate has been raging ever since the comet, only the third known interstellar object to ...