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– Unsuccessful soft landing, intentional hard landing, or mission still in progress. – Successful soft landing with intelligible data return. The tannish hue indicates extraterrestrial soil. – Successful soft landing, intelligible data return, and sample return to Earth. The greenish hue indicates terrestrial return.
Montage of planets and some moons that the two Voyager spacecraft have visited and studied. It is the only program that visited all four outer planets. A total of nine spacecraft have been launched on missions that involve visits to the outer planets; all nine missions involve encounters with Jupiter, with four spacecraft also visiting Saturn.
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 ...
landed: landed: 1998 flyby; 2000 orbited (first asteroid studied from orbit); 2001 landing; first asteroid landing, first asteroid orbited by a spacecraft, first near-Earth asteroid (NEA) visited by a spacecraft. 9969 Braille: 2.2 × 0.6 (1.6 km) 1992 Deep Space 1: 1999 26 12.7
This is a list of space probes that have left Earth orbit (or were launched with that intention but failed), organized by their planned destination. It includes planetary probes, solar probes, and probes to asteroids and comets, but excludes lunar missions, which are listed separately at List of lunar probes and List of Apollo missions.
The great majority of Earth-orbiting satellites. Space probes leaving Earth orbit that are not concerned with Solar System exploration (such as space telescopes targeted at distant galaxies, cosmic background radiation observatories, and so on). Probes that failed at launch.
First spacecraft to photograph another spacecraft landing on another celestial body (Phoenix, on Mars). USA (NASA) Mars Reconnaissance Orbiter [55] 8 November 2008: First discovery of lunar water in the form of ice. [note 4] India Chandrayaan-1 [56] [57] 6 March 2009: First space telescope designated to search for Earth-like exoplanets. USA (NASA)
The first artificial object sent into space was the Soviet satellite Sputnik 1, launched on 4 October 1957, which successfully orbited Earth until 4 January the following year. [65] The American probe Explorer 6, launched in 1959, was the first satellite to image Earth from space.