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 ...

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

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.

ALMA(ESO/NAOJ/NRAO)/M. McClure et al. Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.

NASA's Voyager 1 launched 48 years ago in September 1977 on a decades-spanning journey to study the cosmos and search for ...