Dates and discoveries
1962.Shortly after lift off mariner 1 was experiencing difficulties with engines and was forced to crash because it veered off course.
1962.Mariner 2 was successful and retuned with lots of interesting information about Venus.
1964.Mariner 3 mission was to orbit Marsalis and take lots of photos and transmit to earth but shield failed when trying to brake through the atmosphere.
1964-1965 Successfull 4th space craft to send images from deep space from Mars.
In 1969 mission for Mariner 5 was to explore atmosphere and surface of venus to give information to NASA about Venus.
1971. Mars flyby to find out more information about Mars by photos.
1969. To discover more about Mars, mainly surface and atmosphere.
1971, orbit Mars but failed and crashed back to earth.
1971. Mars orbit and report back to earth information and images back to NASA.
Venus and mercury flyby first to visit mercury first to have close images