Astronomers searching for an undiscovered planet in the outer solar system hope to catch a glimpse of it Thursday through the Subaru Telescope located on top of Hawaii's Mauna Kea mountain. Courtesy of the National Astronomical Observatory of Japan hide caption
The Dark Energy Camera, commissioned by the U.S. Department of Energy to make a map of distant galaxies, is mounted on the Blanco Telescope at the Cerro Tololo Inter-American Observatory in the Chilean Andes. Reidar Hahn/Courtesy of The Dark Energy Survey hide caption
The Japanese Subaru Telescope on Mauna Kea in Hawaii has the right attributes for searching for Planet Nine. National Astronomical Observatory of Japan hide caption
The imagined view from "planet nine" back toward the sun. Astronomers think the huge, distant planet is likely gaseous, similar to Uranus and Neptune. Caltech/R. Hurt (IPAC) hide caption