A group of astronomers has found a solar system 116 light-years from Earth that seems to challenge current theories about how ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice ...

Astronomers have found a rocky planet where it should not exist, orbiting far from a cool red star. Could this strange ...

Scientists have proposed a daring mission to intercept interstellar comet 3I/ATLAS, the third such object ever detected in our solar system. But there's one problem: the interstellar comet is moving ...

Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.

Deep within the Kuiper belt, some small worlds look like they were assembled from two mismatched snowballs pressed together.

CAPE CANAVERAL, Fla. — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system.

The Solar System remains a unique natural laboratory for exploring the processes that govern planetary formation, evolution and dynamics. Contemporary research continues to refine our understanding of ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be confused for Mars. The alluvial basin is full of tan and gray regolith, hued ...