there has been 16 probes that had been sent to venus.
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No, there haven't been any space probes to land on Pluto physically, but the Hubble Space Telescope has been, somewhat, close to be able to take pictures of Pluto.
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Space probes leave Earth, they do not go toit.
The Voyager I and the Voyager II are the only space probes to visit Neptune. They landed in the 1980s.
There have been two space probes: Mariner 10 and Messenger.
2 probes. Mariner 10 orbiter in the 1970s and the current MESSENGER spacecraft which will orbit and map the entire surface.
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there are many probes in space. There is the Hubble space telescope, voyager voyager 2. Here are just some probes in space. there too much to name all of them.
Actually, there are very many space probes out there, like Cassini, Voyagers 1 and 2, Spirit and Opportunity, Galileo, the Viking Lander, and many more.
it only has one