The first of two spacecraft to visit the planet was Mariner 10, which has mapped about 45% of the planet's surface from 1974 to 1975. The second is the MESSENGER spacecraft from NASA, which mapped another 30% during his trip to Mercury January 14, 2008. MESSENGER is now in orbit around Mercury to complete the mapping.
Two spacecraft have visited the planet Mercury so far. The first was called Mariner 10. During 1974 and 1975, Mariner 10 flew by Mercury three times and mapped about half of the planet's surface. Mariner 10 also discovered Mercury's thin atmosphere and detected its magnetic field. More recently, Messenger went into orbit around Mercury in 2011, and completed mapping of 100% of Mercury's surface in 2013. BepiColombo is planned for launch in 2015 and planned to enter orbit around Mercury in 2022. Source: http://coolcosmos.ipac.caltech.edu/ask/31-How-many-spacecraft-have-been-to-Mercury-
Freedom 7 on may 5th in 1961
Mariner 10 and MESSENGER probes.
The Mariner 10 and the MESSENGER
I think there is no spacecraft on Mercury because it is to close to the sun, the spacecrafts would just melt.
it has neither. also there are no man made orbiting spacecrafts.
Yes by two satellites. Mariner 10 in 1974/75 which mapped about 45% of the planet, and Messenger in January 2008 which added another 30%. Messenger is due to make two more passes of Mercury before finally orbiting the planet in 2011.
saturn has only been visited 4 times by spacecrafts
mariner 10 and MESSENGER
Messenger
The Mariner 10 and the MESSENGER
By the space race
Although several spacecrafts have been sent to Venus, no alien spacecrafts have been discovered on its surface.
You seem to be misinformed. The first US spacecraft was Mariner 10. This was followed by Messenger. There have not been others.
Mariner 10 and MESSENGER.
I think there is no spacecraft on Mercury because it is to close to the sun, the spacecrafts would just melt.
it has neither. also there are no man made orbiting spacecrafts.
The answer is mars.
Yes by two satellites. Mariner 10 in 1974/75 which mapped about 45% of the planet, and Messenger in January 2008 which added another 30%. Messenger is due to make two more passes of Mercury before finally orbiting the planet in 2011.
Venus has acid that melts metal. It is also hotter than Mercury because of Venus's clouds.