Helska
this planet, the fourth of seven in the Helska System, was the location of the first Yuuzhan Vong base. Much of the planet is covered with ice, and the atmosphere is choked with vaporous fog. Yomin Carr had scouted the planet before he joined the group on ExGal-4, and had left behind villips to help monitor the creation of the base. It was a small world, no more than a few thousand kilometers in diameter. The fifth planet, just outside Helska's orbit, was an uninhabitable gas giant. When the New Republic finally discovered how to destroy the Praetorite Vong's yammosk, which was hidden inside the planet, they forced the world to warm and then re-solidify via the Mezzicanley Wave effect. Helska's matter was unable to handle the strain of the effect, and shattered into a billion pieces of ice and rock.