Exploration of Mars failed upon impact. Mars 4 flew by the planet at a range of 2200 km returning one swath of pictures and radio occultation data, which constituted the first detection of the nightside ionosphere on Mars. Mars 7 probe separated prematurely from the carrying vehicle due to a problem in the operation of one of the onboard systems (attitude control or retro-rockets) and missed the planet by . In 1964, NASA's Jet Propulsion Laboratory made two attempts at reaching Mars. Mariner 3 and Mariner 4 were identical spacecraft designed to carry out the first flybys of Mars. Mariner 3 was launched
Hope Mars Mission of Emirati engineers, and is a contribution towards a knowledge-based economy in the UAE. The probe has been named "Hope probe" or 'Al-Amal' and it is scheduled to reach Mars in 2021, which coincides with the 50th anniversary of the United Arab Emirates' formation. This spacecraft orbiter is a planned uncrewed mission to Mars by the United Arab Emirates to study the Martian atmosphere and climate. The "Hope" probe is expected to be launched from Japan in the summer of 2020 and it will take seven to nine months to arrive at Mars. To accomplish the objectives of the Emirates