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 – ...

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

Planets with suns like Wolf 359 are subject to huge blasts of radiation that raise questions about their long-term ...

Rumya Sundaram, Citizen Scientist Coordinator for the Key Biscayne Community Foundation, will present this month’s Citizen ...

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 ...

Stargazers will be treated to a rare alignment of seven planets on 28 February when Mercury joins six other planets that are already visible in the night sky. Here's why it matters to scientists.

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 ...