Vesta, thought to be the second-largest asteroid in the solar system, could be a piece of an ancient, unknown planet, a new study hints.

Vesta might be a shattered remnant of an early planet, not a failed one—forcing scientists to rethink how worlds begin.

What are the best methods to explore Valles Marineris on Mars, which is the largest canyon in the solar system? This is what a recent study presented at the 56th Lunar and Planetary Science Conference ...

Vesta has a number of characteristics working in its favor when it comes to its visibility in the night sky. For one, it ...

NASA's Psyche mission to visit a gargantuan asteroid that could be worth more than the entire world economy has hit a snag.

Astronomers have detected a promising sign of a ninth planet lurking at the the farthest reaches of the Solar System.

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

An exoplanet discovered in 2020 contains the coldest temperatures ever measured on a planetary body, according to scientists.