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Mars-1 was the first spacecraft launched to Mars in 1962, [266] but communication was lost while en route to Mars. With Mars-2 and Mars-3 in 1971–1972, information was obtained on the nature of the surface rocks and altitude profiles of the surface density of the soil, its thermal conductivity, and thermal anomalies detected on the surface of ...
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 ...
The Hubble Space Telescope (HST) has been used to perform systematic studies of Mars [91] and has taken the highest resolution images of Mars ever captured from Earth. [92] This telescope can produce useful images of the planet when it is at an angular distance of at least 50° from the Sun.
[5] [6] [7] Moon: Antiquity: 1543 Moon of Earth: Following the acceptance of the Copernican model, planets were defined as objects which orbit the Sun. Since the Moon can be said to orbit the Earth, it was no longer regarded as a planet, but this is debated; see double planet. [5] [6] [7] Io: 1610 1700s Moons of Jupiter
By Eric Sandler On August 20, 1975 -- 39 years ago today -- NASA launched the first of two spacecraft as a part of their new Viking program and the images they captured back in the '70s and '80s ...
When Mariner 4 flew by Mars on July 15, 1965, it captured the first images of another planet from space. But the first image of Mars ever seen on TV was different than expected.
Mars 3 28 May 1971 4.5 Not deployed [4] [5] 3. Mars 96: Penetrator Mars 96 16 Nov 1996 88 Failure [11] 4. Deep Space 2: Penetrator Mars Polar Lander 03 Jan 1999 2.4 Failure [14] [15] 5. Sojourner: Rover Mars Pathfinder 04 Dec 1996 11.5 Success [12] [13] 6. Mars helicopter Ingenuity: UAV Helicopter: Mars 2020 Perseverance rover: 30 Jul 2021 1.8 ...
Mars Global Surveyor: 7 November 1996 Mars orbiter [319] [320] Mars 96: 16 November 1996 Attempted Mars orbiter/landers (failed to escape Earth orbit) [321] [322] Mars Pathfinder: 4 December 1996 Mars lander and first successful planetary rover [323] [324] [325] ACE: 25 August 1997 Solar wind and "space weather" observations (operational since ...