i think its 1
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.
As of 2018, 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.
2 probes. Mariner 10 orbiter in the 1970s and the current MESSENGER spacecraft which will orbit and map the entire surface.
No satellites have landed probes on Mercury, nor are any expected prior to 2016.The spacecraft Mariner 10 flew to Mercury in 1974 and 1975, coming within 703 kilometers (437 miles) of the surface. However, Mariner 10 was only able to photograph one side of Mercury, the same side being in sunlight on each of three fly-by's.The NASA spacecraft MESSENGER flew by Mercury in 2008 and 2009, and has been mapping the entire surface since it began orbiting the planet in 2011.
According to the 2008 Mercury Mariner Owner Guide : The fuel tank holds ( 16.5 U.S. gallons )
5 qts
According to the 2010 Mercury Mariner Owner Guide : ( the fuel tank holds 17.5 U.S. gallons )
5 quarts.
There have been two space probes: Mariner 10 and Messenger.
The first American spacecraft which orbited the earth was called The Mercury Friendship 7, and the astronaut was a famous person his name was John Glenn, he was a senator for many years later.
According to the 2009 Mercury Mariner Owner Guide : With engine oil filter change : The 2.5 liter four cylinder engine takes ( 5.3 U.S. quarts ) The 3.0 liter V6 engine ( 6.0 ) * 5W-20
According to the 2009 Mercury Mariner Owner Guide : With engine oil filter change : The 2.5 liter four cylinder engine takes ( 5.3 U.S. quarts ) The 3.0 liter V6 engine takes ( 6.0 ) * 5W-20