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The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...
It discovered that the atmosphere of Venus was 95% carbon dioxide (CO 2 ), and in combination with radio occultation data from the Mariner 5 probe, showed that surface pressures were far greater than expected (75 to 100 atmospheres).
In 2007, Venus Express discovered that a huge double atmospheric polar vortex exists at the south pole. [140] [141] Venus Express discovered, in 2011, that an ozone layer exists high in the atmosphere of Venus. [142]
A NASA spacecraft has captured never-before-seen images of Venus, providing stunning views of the hellishly hot surface of the second rock from the sun. Dark side of Venus revealed in new NASA ...
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Missions to Venus constitute part of the exploration of Venus. The Soviet Union , followed by the United States , have soft landed probes on the surface. Venera 7 was the first lander overall and first for the Soviet Union, touching down on 15 December 1970.
1959 – Luna 3 sends the first images of another celestial body, the Moon, from space, including its unseen far side. [176] 1962 – Mariner 2 Venus flyby performs the first closeup observations of another planet. [177] 1964 – Mariner 4 spacecraft provides the first detailed images of the surface of Mars. [178]