The New Horizons probe will be launched on the fastest interplanetaryrocket ever.
NPR: NASA Sends Spacecraft to Pluto
2.
Glen Fountain from the Johns Hopkins Applied Physics Lab says New Horizons will launch atop the speediest interplanetaryrocket ever, a supercharged Atlas V.
NPR: NASA Sends Spacecraft to Pluto
3.
The amount of radiation likely won't change unless there's a rocket engine developed that can speed up the interplanetary ride, researchers said.
NPR: Astronauts Face Radiation Threat On Long Mars Trip