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

According to astronomer Avi Loeb, it's the perfect day to test whether interstellar object 3I/ATLAS is the remnant of an ...

A new analysis of our solar system’s interstellar interloper, 3I/ATLAS, reveals that it’s spewing huge amounts of water — and astronomers can’t immediately explain why. The object, which is widely ...

Oct. 7 (UPI) --NASA and the European Space Agency are tracking the 3I/ATLAS interstellar object as it travels past Mars on its way toward the Sun and through the solar system. The object is thought to ...

A rare interstellar comet — only the third ever confirmed to enter our solar system — was photographed last week, closely approaching Mars, the European Space Agency said Tuesday. The images taken on ...

3I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some researchers suggest it could even be alien-made, drawing comparisons to probes ...

An intriguing interstellar object known as 3I/ATLAS is, as of now, on the opposite side of the sun from Earth – making it impossible to observe from the ground. As 3I/ATLAS warps and grows the closer ...

"It tells us that the ingredients for life's chemistry are not unique to our own." A rocky visitor from beyond our solar system is leaking water like a "fire hose running at full blast," a new study ...

A few days ago, an inscrutable interstellar interloper made its closest approach to Mars, where a fleet of international spacecraft seek to unravel the red planet’s ancient mysteries. Several of the ...

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a very different structure than comets in the solar system. Hydroxyl compounds ...

A European Space Agency spacecraft orbiting Mars caught a glimpse of interstellar comet 3I/ATLAS last week. Credit: ESA / D. Ducros illustration As a visitor from another solar system made its closest ...

The first images from Mars of the Manhattan-sized interstellar object 3I/ATLAS have been released as NASA has gone radio silent due to the government shutdown. Glowing in the Martian sky, 3I/ATLAS was ...