Formation and evolution of the Solar System have been forged from the remnants in less violent collisions. Moons around some asteroids currently can only be explained as consolidations of material flung away from the parent object without enough energy to entirely escape its gravity. Moons have come to exist around most planets and many other Solar System bodies. These natural satellites originated by one of three possible mechanisms: Jupiter and Saturn have several large moons, such as Io, Europa, Ganymede and Titan, which may have originated from discs around each giant planet in much the same way that the planets formed from the disc around the Sun.
Twice as Far Twice as Far "Twice as Far" is the fourteenth episode of the sixth season of the post-apocalyptic horror television series "The Walking Dead", which aired on AMC on March 20, 2016. The episode was written by Matthew Negrete and directed by Alrick Riley. This episode primarily focuses on two separate groups of characters going on supply runs; Daryl, Rosita, and Denise; and Abraham and Eugene. The episode marks Merritt Wever's final appearance of supporting character, Dr. Denise Cloyd, as she is killed off in this episode. It also marks the return of Austin Amelio as Dwight, who has been absent