(NASA) Galaxy of Horror - 55 Cancri e
Strange things transpire in the twilight zone, and stranger still is the two-faced planet with a molten, lava-filled dayside and a nightside plunged into permanent darkness. You might think you’d survive in the twilight or “terminator” zone, where the day and night sides meet…but it’s more likely you’ll be toast.
PLANET TYPE: Super-earth DISCOVERY DATE: October 2004
MASS: 8.08 x Earth PLANET RADIUS: 1.91 x Earth
ORBITAL RADIUS: 0.01544 AU ORBITAL PERIOD: 0.74 days
ECCENTRICITY: Unknown DETECTION METHOD: Radial Velocity