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.

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

Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities.

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

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 ...

Jupiter and Venus, the two brightest planets in our solar system, should be widely visible for much of August in the northern hemisphere.

But until now, only one other system, discovered in 2018, had ever actually been observed with two planets inside a large inner gap. The new discovery, though, marks a major milestone: The growing ...

Jupiter and Venus, the two brightest planets in our solar system, should be widely visible for much of August in Florida and the United States.

The Very Large Telescope view on the left shows the rings in the protoplanetary disk and the planet in yellow. Views from the Magellan Telescope in Chile and the Large Binocular Telescope in Arizona ...

Space The Hunt for ‘Planet Nine’: Why There Could Still Be Something Massive at the Edge of the Solar System The mystery of Planet Nine is far from solved. Here's what we know.