The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

An astute scientist has claimed the comet could be a mothership for an advanced alien life-form, sent to 'do a recon of Earth ...

Interstellar object 3I/ATLAS is on the opposite side of the sun from Earth - but several spacecraft are in the perfect position to get a closer look. As 3I/ATLAS warps and grows the closer it gets to ...

For millions of years, a frozen traveler drifted in silence through the stars, carrying secrets from another world. This summer, that interstellar visitor—now known as 3I/ATLAS—passed through our ...

As our solar system’s interstellar visitor hides behind the Sun, humankind’s expeditions to Mars have stepped up to provide an extra set of eyes. On Tuesday, the European Space Agency announced that ...

The comet is only the third interstellar object recorded in the solar system. Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed ...

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 ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

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 ...

Because the spacecraft are equipped with cameras that aren't designed to observe an object so far away, the images they captured were fuzzy. Still, scientists were able to get a little bit of a look ...

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 ...