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

Carolyn Porco's design of the inscription that was etched onto the capsule of Gene's remains sent to the moon. Courtesy of Carolyn Porco hide caption

This illustration show's NASA's Juno mission approaching Jupiter. Juno used distant stars to chart its course across the void. NASA/JPL-Caltech hide caption

This computer-simulated image shows a supermassive black hole at the core of a galaxy. The cosmic monster's powerful gravity distorts space around it like the mirror in a fun house, smearing the light from nearby stars. NASA/ESA/D. Coe, J. Anderson and R. van der Marel (Space Telescope Science Institute) hide caption

An artist's rendering shows gas falling into a supermassive black hole, creating a quasar. Dana Berry/SkyWorks Digital; SDSS collaboration hide caption

A view from Earth of a slender crescent moon in close proximity to the two brightest planets in the sky, Venus and Jupiter. Justin Lane/epa/Corbis hide caption

A NASA projection shows the path of Venus and Jupiter; the two planets will converge in the Earth's sky Tuesday night. YouTube hide caption

The 200-inch Hale Telescope, a masterpiece of engineering at Caltech's Palomar Observatory, was the world's largest telescope until 1993. Scott Kardel/Palomar Observatory/Courtesy of Palomar Observatory/California Institute of Technology hide caption

The Hooker 100-inch reflecting telescope at the Mount Wilson Observatory, just outside Los Angeles. Edwin Hubble's chair, on an elevating platform, is visible at left. A view from this scope first told Hubble our galaxy isn't the only one. Courtesy of The Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, Calif. hide caption

A giant cluster of about 3,000 stars called Westerlund 2. The cluster resides in a raucous stellar breeding ground known as Gum 29, located 20,000 light-years away in the constellation Carina. NASA, ESA, STScI/AURA hide caption

A supermassive black hole, like the one illustrated here, has been discovered 12.8 billion light years away, at the center of an exceptionally bright quasar. NASA/JPL-Caltech hide caption

A visualization of the polarization of the Cosmic Microwave Background, or CMB, as detected by ESA's Planck satellite over the entire sky. ESA and the Planck Collaboration hide caption

Stars over the Cerro Tololo Inter-American Observatory in Chile. Sheppard and Trujillo used the new Dark Energy Camera (DECam) on a telescope there to find the distant dwarf planet 2012 VP 113. Reidar Hahn/Fermilab hide caption

The Rosetta Spacecraft is within 186 miles of 67P/Churyumov-Gerasimenko, less than the distance from New York to Boston. ESA/Rosetta/NAVCAM hide caption

Scientists say a brief burst of radio activity has been detected at the Arecibo radio telescope in Puerto Rico. This new report resembles previous activity detected in Australia, which has scientist debating possible causes, including solar flares, blitzars, or something even more mysterious. Brian Negin/iStockphoto hide caption