The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

Yet despite the drumbeat of evidence, we still know of just one planet in the cosmos with life — the one you’re standing on.

Researchers have made a new discovery that changes our understanding of Earth's early geological history, challenging beliefs ...

Prior to 2040, the last planetary quintuplet occurred in the year 1186, and according to Uptain, records show that the close ...

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 planet would be 10 times larger than Earth. It would be divided into five areas. The first would be called the Invention Zone. As the name suggests, people could invent new items with advanced ...

All planets are made of gas, ice, rock and metal, and models of how planets form usually assume that these materials don't ...

Proctor/J. Pollard A quartet of Earth-like worlds, each about 20% to 30% the size of our planet, circle one of our closest ...