New models suggest that Ceres, the asteroid belt's largest object, once had a radioactive core that could have sustained life in the dwarf planet's hidden subsurface ocean billions of years ago.

At the moment, 3I/ATLAS is outgassing as it reaches out sun, with the JWST and NIRSpec finding that carbon dioxide, water, ...

Astronomers have discovered a brand new type of planet outside our solar system that, even in its infancy, is already bigger ...

A Jupiter-like planet has been found orbiting a young sun-like star in a solar system far away in what is a potentially groundbreaking discovery. The planet, named WISPIT 2b, is believed to be a 5 ...

In our own solar system, Mercury, Venus and Earth will be destroyed when the Sun eventually becomes a red giant before transitioning into a white dwarf. For a planet to survive this process, it would ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

Most planet-forming disks have warps that can lead to planets on inclined orbits, which could explain where the tilt of Earth's orbit came from.

WISPIT 2b, a gas giant forming around a young Sun-like star, has been directly imaged for the first time inside a spectacular ...

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being ...

Transmissions between Earth and our own spacecraft could tell us where to look for potential alien transmissions.

NASA is tracking a mysterious, fast-moving object entering our solar system, raising questions about whether it's just a ...