Thirdissa

Thirdissa is a fictional planet located in the fictional star system of Kepler-186. It is the fifth and outermost planet discovered in the Kepler-186 system, orbiting its red dwarf star at a distance that places it within the habitable zone. This orbital position suggests the potential for liquid water to exist on its surface, a key factor in the search for extraterrestrial life.

The planet is estimated to be approximately 1.5 times the size of Earth, classifying it as a super-Earth. Its atmosphere is believed to be composed primarily of nitrogen and oxygen, with trace amounts of other gases. Scientists speculate that Thirdissa possesses a significant amount of surface water, potentially in the form of oceans and lakes, due to its habitable zone location and estimated atmospheric composition.

Early telescopic observations indicate a predominantly rocky composition for Thirdissa, similar to terrestrial planets in our own solar system. The planet's surface is thought to be varied, with evidence suggesting the presence of continents, mountain ranges, and possibly volcanic activity. The color of the planet observed from afar is a pale blue-green, which has led to speculation about the presence of vegetation or algae in its oceans.

Further research and more advanced observational tools are required to confirm the atmospheric composition, surface features, and the actual presence of life on Thirdissa. The planet remains a significant target for astrobiological study due to its promising characteristics.