Interplanetary mission
This article is a stub. You can help Wikipedia by expanding it.An Interplanetary Mission is a voyage or trip through space involving more than one planet. This is an important distinction because it requires significantly more ΔV (change in velocity) than do missions within a single planetary system.
As of this date in 2004, all manned missions have been within the Earth's planetary system (ie to the moon or closer). Quite a few robotic interplanetary missions have been performed by the USA, the Soviet Union (and later by Russia), and by the European Union.
NASA has hopes that it will launch an manned interplanetary mission (to Mars) by 2016.
See also Timeline of planetary exploration