mariner 4
Mariner 9 took on that spacecraft's mission of mapping 70 percent of the Martian surface in addition to its own objective of studying changes over time in the Martian atmosphere and surface.
The First spacecraft was the MESSENGER. The First spacecraft was the MESSENGER.
MARS 3 from the USSR was the first, if you don't count ones that crash landed. However it failed after a few seconds. So the "real" first is reckoned to be Viking 1 of the USA.
the first spacecraft to explore mars is the mariner 4
The mariner spacecraft explored Mercury, Mars, and Venus. The first successful space probe and first spacecraft visit to a planet was Mariner 2.
venus was the first planet visited by the American spacecraft
The first of two spacecraft to visit the planet was Mariner 10, which mapped only about 45% of the planet's surface from 1974 to 1975. The second is the MESSENGER spacecraft, which mapped another 30% during its flyby of January 14, 2008. MESSENGER will make one more pass by Mercury in 2009, followed by orbital insertion in 2011, and will then survey and map the entire planet.
As far as is known to the public, no man-made object has ever landedon Mercury.The MESSENGER spacecraft flew by Mercury to gather data on the planetonce in 2009, and once again in early 2010.1
That statement is incorrect. Mariner 2 was the first spacecraft to successfully fly by and study another planet, Venus, not scan. It provided valuable data on Venus' atmosphere and surface temperature.
the spacecraft is the MESSENGER i the spacecraft is the MESSENGER i
Venera 3 was the first spacecraft to reach the planet's surface on March 1, 1966. It didn't land as such, more crashed.
The mariner spacecraft first landed on Mars 1971 I think.