Astronomers have discovered a new dwarf planet in the Oort Cloud, a spherical ‘cloud’ of frozen objects surrounding the Solar System and extending halfway to the nearest stars. Named 2015 TG387, the new object has an orbit that supports the presence of an unknown massive distant planet, called Planet Nine. This image of 2015 TG387 was taken by the Subaru Telescope on October 13, 2015. Image credit: Dave Tholen / Chad Trujillo / Scott Sheppard. Nicknamed...
