Comet 17P/Holmes which exhibited a Great Outburst in October 2007 was Born in a Region of the Solar Nebula Far from the Sun
November 7, 2018
A team of astronomers has discovered that Comet 17P/Holmes formed in a cold region of the solar nebula far from the Sun. This suggests that Comet 17P/Holmes probably includes highly volatile species abundantly and that sublimation of these volatiles could be responsible for the comet's explosive releases of dust grains...
Subaru Telescope Discovers a New Extremely Distant Solar System Object During Hunt for Planet X
October 3, 2018
Using Hyper Suprime-Cam on the Subaru Telescope, astronomers have discovered a new object at the edge of our Solar System. The new extremely distant object far beyond Pluto has an orbit that supports the presence of an even-farther-out Super-Earth, or larger Planet X...