Answer: Super-Earth
Notes: Scientists have found a super-Earth, 55 Cancri e, near our solar system. It's twice Earth's size with a thick atmosphere rich in carbon dioxide and monoxide. Orbiting its star, Copernicus, at a close distance, it completes an orbit every 18 hours. Positioned 41 light years away, it faces perpetual day and night. A light-year equals nearly six trillion miles, illustrating the vast gap between Earth and this exoplanet.
