Summary:
- Astronomers have identified a "mega-Earth" exoplanet, designated TOI-1386 b, which possesses a mass approximately 23 times that of Earth.
- The discovery is significant because the planet orbits its host star every 26 days, providing valuable data on the transition between rocky super-Earths and gaseous sub-Neptunes.
- Researchers utilized high-precision radial velocity measurements to determine the planet's mass, revealing a high density that suggests a substantial rocky composition rather than a volatile-rich atmosphere.