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

New research using the James Webb Space Telescope offers the most detailed portrait yet of how auroras form on Uranus.

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

Out in the Kuiper Belt, the massive doughnut of debris beyond Neptune, about one in 10 kilometer-scale objects have surprised ...

Antarctica plays a crucial role in Earth's climate system by reflecting solar radiation back into space. The large white ice ...

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

A new paper in Monthly Notices of the Royal Astronomical Society argues the simplest answer may work: contact binaries like ...

Titan, the largest moon of Saturn, may have been even more instrumental to the system’s evolution than we thought, forming ...

Active small bodies—including comets, active asteroids, icy minor planets, and transitional objects—occupy a unique position in planetary science. As ...

Saturn’s largest moon, Titan, might have formed after a collision with a lost moon, according to new research.

In A Nutshell Arrokoth, a snowman-shaped object billions of miles from Earth, is one of the oldest and least-disturbed relics of the early solar system Scientists have long debated whether its two ...