space has been explored by Orbital flights
Human flights
Space Probes.
None has been found yet, but it may still be found in the future - not much of space has been explored yet.
Yes it has, by remote space vehicles, but not by humans directly.
venus was explored when a space craft was flying by
No, but a space probe called New Horizons is on its way for a flyby.
There have been two space probes: Mariner 10 and Messenger.
From space shuttles and space stations. Also satilites.
Simple!Space is explored so that we know where we are and the things that surround our planet. So that we can find out if there is any other form of life somewhere else in the universe and beyond. Its explored so that we know whats out there, and so we have heaps of knowledge about space.
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USA and Canada
No. The only object that humans have been to other than Earth is the moon. So far Neptune has been explored by one unmanned space probe.
Approximately 5 of the Earth's oceans have been explored by humans, while a larger portion of the land has been explored.