A new study suggests that the outer Solar System could become unstable much sooner than scientists previously estimated.

Our Sun, the ancient, stubborn, and, for most of us, reassuringly eternal star, has been at the heart of the Solar System for ...

Most comets come from the far-off Kuiper Belt and Oort cloud, which lie past the orbits of the outer planets. The ...

Mars is the obvious frontrunner, but it is far from an easy second home. The other candidates reveal just how rare truly human-friendly conditions may be.

Well into the early morning, while much of Japan slept, a gigantic column of fire illuminated the sky over the island of ...

JAXA's Martian Moons eXploration (MMX) probe has launched on an H3 rocket. It aims to collect at least 10 g of samples from ...

By indirectly probing the depths of Uranus and Neptune's atmospheres, an international team of scientists has revealed a significant contrast in their chemical composition. Neptune appears to be more ...

ESA's Euclid mission, built to map distant galaxies, has found comet C/2026 S1 (Euclid), its first previously unknown comet, ...

Japan launched an uncrewed spacecraft toward the Martian moon Phobos on Tuesday on a mission ​intended to become the first to ...

Samples from Phobos will provide useful data for scientists to consider using a Martian moon as a base for a future manned ...

JAXA's 2026 MMX mission will return samples from Phobos to resolve whether Mars' moon is a captured asteroid that delivered ...

Alien planetary systems appear to fall into two distinct families, with some enjoying relatively calm orbits while others ...