Kepler-10 b, confirmed in 2011 by NASA’s Kepler mission, is a dense rocky planet ~1.4 times Earth’s size orbiting a Sun-like star every 20 hours. Dayside temps hit lava oceans over 2,500°F (1,400°C)—molten surface with no atmosphere left.
One of the first rocky exoplanets discovered, it’s a bare, glowing world too close-in for life—just extreme heat and iron-rich rock.
Proved small lava worlds exist, paving the way for Earth-like hunts.