A renowned physicist believes he's cracked the mystery of where a giant unidentified object hurtling through our solar system ...

For only the third time in recorded history, an interstellar object has crossed into our solar system, creating quite the ...

COLUMBUS, Ohio — In a cosmic first for this decade, astronomers have identified a mysterious comet from another galaxy — ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Some exoplanets in their stars' habitable zones may be distinctly uninhabitable due to solar flaring. Red dwarfs are known for powerful flaring, and since they're dim and their habitable zones are ...

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

Dubbed 3I/ATLAS, it is blazing through our cosmic cul-de-sac at truly awe-inspiring speeds between the main asteroid belt and ...

Sedna, a distant dwarf planet three-quarters the size of Pluto, is inching toward the brightest star in our sky — and in 2076 ...

“It’s very exciting!” Hopkins, an astrophysics graduate student at the University of Oxford, told IFLScience. “I’ve been ...

What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but.

A rare interstellar comet is flying through our solar system. Here's how—and when—you might be able to see Comet ATLAS from ...

The NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, first reported observations to the Minor Planet Center of comet 3I/ATLAS on July 1, 2025.