What is Planet Xena?
Planet Xena is an orb circling the sun that was first discovered by astronomers Michael Brown, Chad Trujillo, and David Rabinowitz in 2003. Its official name at this point is UB313. However, it was nicknamed Xena, after Xena, Warrior Princess , the popular television show. First measurements estimated planet Xena had a diameter of about 1,500-2,000 miles (approximately 2,500-3,500 km). These measurements made UB313 roughly one and a half times larger than Pluto. Planet Xena is the largest orb discovered since Pluto was identified. More measurements evaluated that planet Xena is approximately 1.6 billion miles (approximately 15 billion km) from earth. This measurement places UB313 in the Kupier Asteroid Belt. Xena appears gray, which may point to a surface of frozen methane gas. Scientists believe the temperature on Xena is absolute zero. Observation in 2005 also revealed that planet Xena has a moon, nicknamed Gabrielle. The discovery of UB313 has led to a fierce debate on whether plane