K2-291 b is a lively little world orbiting the star K2-291, discovered in 2019 using the trusty Kepler Space Telescope’s CCD Array. This planet was spotted as it made its transit, or tiny eclipse, across its star, giving astronomers a peek at its presence far beyond our solar system. While we don’t have its exact proper name or its exact distance from Earth, K2-291 b stands out as a fascinating example of the many diverse planets circling stars in the K2 mission's realm. Imagine a planet that plays hide-and-seek with its star, dipping in and out of view—K2-291 b captures the thrill of cosmic discovery, reminding us that the universe is full of hidden gems waiting to be found!