The concept of Planet X, or Planet Nine, has captivated astronomers for decades. This hypothetical planet, theorized to be ...

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

A powerful new tool comes online this year that could help astronomers locate the mysterious planet hiding somewhere beyond ...

Despite the name, a planetary alignment isn’t when the planets get in a row, it’s when a fair few gather on one side of the ...

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

2025 is starting off with a bang for skygazers, with a planet parade now visible in the night sky. A planet parade is when ...

Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds ...

The James Webb Space Telescope has provided groundbreaking insights into a new type of exoplanet, fundamentally different ...

Six planets are lining up in a row from our Earthly view of the cosmos, in a spectacle that'll be visible in January through ...

Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds up to 33,000 km/h, the winds make up the fastest jet-stream of its kind ever ...