NASA spacecraft Mariner 10 flew by planet Mercury on 29th March 1974. It had been launched on 3rd November 1973, two years after Mariner 9. Mariner 10 was the first space probe to fly by Mercury.
NASA spacecraft Mariner 10 flew by planet Mercury on 29th March 1974. It had been launched on 3rd November 1973, two years after Mariner 9. Mariner 10 was the first space probe to fly by Mercury.
