At current we have sent, or are sending, probes to all of the planets in our solar system. The probe Voyager has visited several planets, including Jupiter and Neptune, while Cassini is currently in orbit around Saturn.
there has been 16 probes that had been sent to venus.
If by humans visiting you mean , Which planet's have had humans land on that planet the answer is none. The only other place in space that humans have visited is the moon.
The U.S. has sent a number of space probes to the planet Mars. Several have been orbiting camera platforms, while others have been rovers or lander.
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The US sent the Voyager probes, Viking probes, and New Horizons probe to explore space, while the USSR sent the Venera probes, Luna probes, and the Mars probes. These space probes played crucial roles in advancing our understanding of the solar system and beyond.
Yes, NASA has sent a couple of unmanned probes to examine Mercury, Mariner 10 which did a flyby and the MESSENGER orbiter.
April 2008 At present the only planet in our solar system that has not been visited (either by an orbiting spacecraft or flyby spacecraft) has been the recently planet downgraded body of Pluto. There is a mission currently in motion to visit this distant outpost.
Unmanned space probes have been sent to various destinations in our solar system, including Mars, Venus, Mercury, Jupiter, Saturn, Uranus, Neptune, and Pluto. They have also traveled beyond our solar system to study interstellar space.
One space probe has been sent to Pluto: NASA's New Horizons spacecraft. It performed a flyby of Pluto in July 2015, providing the first close-up images and scientific data of the dwarf planet and its moons.
Some of the probes that have been sent to Venus include the Soviet Venera missions, NASA's Magellan spacecraft, and the European Space Agency's Venus Express. Currently, the planned VERITAS and EnVision missions by NASA and the European Space Agency, respectively, aim to further explore Venus in the coming years.
As of 2014, humans have not set foot on the planet Mercury. To date, the only probes sent have been Mariner 10 which did a flyby, and the MESSENGER orbiter; both probes from NASA.
There have been many probes sent into space by different space agencies, such as NASA's Voyager probes, the Mars rovers like Curiosity and Perseverance, and the ESA's Rosetta probe. Each probe is designed for specific missions, such as studying distant planets, asteroids, or comets, and expanding our understanding of the universe.