page_title: Timeline of Solar System exploration
section_title: 1970s
hierarchical_section_title: Timeline of Solar System exploration / 1970s
caption_attribution_description: English: Mariner 10 Français&#160;: Mariner 10 Deutsch: Mariner 10
context_page_description: This is a timeline of Solar System exploration ordered by date of spacecraft launch. It includes:
  All spacecraft that have left Earth orbit for the purposes of Solar System exploration, including lunar probes.
  A small number of pioneering or notable Earth-orbiting craft.
  It does not include:
  Centuries of terrestrial telescopic observation.
  The great majority of Earth-orbiting satellites.
  Space probes leaving Earth orbit that are not concerned with Solar System exploration.
  Probes that failed at launch.
  The dates listed are launch dates, but the achievements noted may have occurred some time later—in some cases, a considerable time later.
caption: Mariner 10 – First Mercury flyby
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