Discoveries using the telescopes on Mauna Kea

[TomK]

The known population of the solar system keeps growing. Recent observations on telescopes including the Subaru Telescope on Mauna Kea have discovered some previously unknown trans-Neptunian objects (those beyond the orbit of Neptune). This is important as it helps narrow down the search for the proposed "planet 9", a large planet that is thought to exist about 200 times farther from the sun than the Earth.

http://phys.org/news/2016-08-ninth-plane...stant.html