Astronomers say that mysterious interstellar visitors like 'Oumuamua and 3I/ATLAS are the most common large bodies in the ...

On Sept. 21-22, a partial solar eclipse will see the moon sweep over the sun's disk, blocking its light over a swathe of the ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, ...

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

The design of TARS: a simple yet revolutionary system TARS fundamentally differs from traditional spacecraft propulsion systems. It does not rely on chemical rockets or nuclear power; instead, it ...

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.

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

A research team led by geophysicists at UC San Diego’s Scripps Institution of Oceanography provides an explanation for ...

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

The Japanese Hayabusa2 spacecraft visited the asteroid Ryugu, which had flowing water for over a billion years. This unexpected discovery, made when the spacecraft collected and returned samples, adds ...