Hydranencephaly or hydrancephaly [1] is a condition in which the brain's cerebral hemispheres are absent to varying degrees and the remaining cranial cavity is filled with cerebrospinal fluid.[2]
Mission Objective. The mission objective of the Voyager Interstellar Mission (VIM) is to extend the NASA exploration of the solar system beyond the neighborhood of the outer planets to the outer limits of the Sun's sphere of influence, and possibly beyond.
One final record that New Horizons could potentially have a shot at is the fastest interstellar spacecraft. This record currently belongs to Voyager 1 that is exiting our solar system at a rate of about 38,600 mph (62,100 km/h).