Venus is now known for an extreme and hostile surface environment, but planetary scientists have long considered whether its earlier history may have been very different. Some evidence suggests the planet could once have been more comparable to Earth billions of years ago.

The polygonal plains on Venus are drawing attention because their patterns may preserve information about the planet’s changing surface conditions. Studying these formations could help researchers assess whether water or a wetter climate played a role in Venus’s geological past.

The possibility of an ancient watery Venus remains part of a broader effort to understand how similar rocky planets can develop very different environments. Evidence from the planet’s surface may offer important clues about its transition from a potentially Earth-like world to the inhospitable planet observed today.