Super-Earth's Lead-Like Density Sets New Record
Astronomers have discovered K2-360 b, a Super-Earth exoplanet with a density comparable to lead, making it the densest known planet in its class. This rocky world, possibly the remnant core of a gas giant, orbits its star in just 21 hours. The planet's high density is attributed to a large iron core, and its formation may involve high-eccentricity migration influenced by a larger companion planet, K2-360 c. The findings highlight the diversity of planetary systems in the universe.