The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Mars will be making its closest approach to Earth in two years, and thus, the mighty red planet, named for the god of war ...

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

Planet Nine", dubbed, has fascinated scientists for its ability to account for "anomalous" motions of objects located faraway ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Stargazers will be treated to a dazzling six-planet "alignment" this January.

Stargazers can witness a rare 'planet parade' in January and February 2024, where six planets align prominently in the night ...

Although it's being mistakenly promoted as a "rare planetary alignment," one of the best "planet parades" in half a century ...

15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System ... interplanetary ... Dec. 9, 2024 — Dust storms on ...