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This is a timeline of Solar System exploration ordering events in the exploration of the Solar System by date of spacecraft launch. It includes: It includes: All spacecraft that have left Earth orbit for the purposes of Solar System exploration (or were launched with that intention but failed), including lunar probes .
The radio communication system of Voyager 1 was designed to be used up to and beyond the limits of the Solar System. It has a 3.7-metre (12 ft) diameter high-gain Cassegrain antenna to send and receive radio waves via the three Deep Space Network stations on the Earth. [ 21 ]
Launch date Closest approach Time elapsed Notes Ref Venera 1: Venus 12 February 1961 19 May 1961 97 days (3 months, 8 days) Contact with Venera 1 was lost 7 days after launch. It was the first spacecraft to fly by Venus, or indeed any planet. [76] Mariner 2: Venus 27 August 1962 14 December 1962 110 days (3 months, 18 days)
First sample return beyond lunar orbit (solar wind). USA (NASA) Genesis: 14 January 2005: First landing in the outer Solar System (Titan). First landing on a moon other than Earth's Moon. ESA USA (NASA) Italy (ASI) Cassini–Huygens: January–February 2005 First confirmed cryovolcano . ESA USA (NASA) Italy (ASI) Cassini–Huygens [47] 4 July 2005
Voyager 1 is escaping the Solar System at the speed of 3.6 AU per year 35° north of the ecliptic in the general direction of the solar apex in Hercules, while Voyager 2 ' s speed is about 3.3 AU per year, heading 48° south of the ecliptic. The Voyager spacecraft will eventually go on to the stars.
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 Solar System travels alone through the Milky Way in a circular orbit approximately 30,000 light years from the Galactic Center. Its speed is about 220 km/s. The period required for the Solar System to complete one revolution around the Galactic Center, the galactic year, is in the range of 220–250 million years. Since its formation, the ...
The Solar System remains in a relatively stable, slowly evolving state by following isolated, gravitationally bound orbits around the Sun. [28] Although the Solar System has been fairly stable for billions of years, it is technically chaotic, and may eventually be disrupted. There is a small chance that another star will pass through the Solar ...