New observations by the Gemini South telescope at Cerro Pachón in Chile revealed that interstellar object 3I/ATLAS' tail is ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...

The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything ...

Astronomers simply can't shake the feeling that there's something really off about interstellar object 3I/ATLAS. The ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS.

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints ...

Astronomers continue to track the third-ever discovered interstellar object, comet 3I/ATLAS, as it moves through our cosmic ...

Interstellar Comet 3I/ATLAS has shocked astronomers with its bizarre chemistry and unusual “tail.” It contains the highest ...

NASA’s OSIRIS-REx samples from asteroid Bennu reveal stardust, water-driven chemistry, and clues to life’s origins in the ...