We all know Mars is called “The Red Planet,” but have you ever stopped to wonder—why is it red? The classic joke explanation ...

A new image has emerged of the Red Planet rising above the lunar limb after being occulted by the moon in January.

Based on the data at the time, they believed the planet met its doom as the star puffed up late in its lifespan, becoming ...

The fact not every One Piece fan knows the name or size of One Piece's planet says something about the priorities of the worldbuilding. It is rare for One Piece lore or story beats to explore these ...

The James Webb Space Telescope (JWST) has been studying the scene of a dramatic collision between a star and its planet, but ...

The red planet Mars, named for the Roman god of war ... defining the length of a Martian day, which is called a sol (short for “solar day”). Mars’s axis of rotation is tilted 25.2 degrees ...