Astronomers Discover Rare ‘Mega-Earth’ Exoplanet: Gliese 523b
Gliese 523b (GJ 523b) is a young, ultra-dense planet that orbits almost perpendicular to its star’s spin, according…
GJ 523b Is A Massive, 170 Myr-old Mega-Earth, Likely On A Polar Orbit
Radius-density diagram of confirmed exoplanets from the NASA Exoplanet Archive with radii below 5 R⊕ and mass and…