Which Happened First?

Cassini−Huygens

Cassini−Huygens
Image: NASA · Public domain · source

Cassini–Huygens, commonly called Cassini, was a joint space-research mission by NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a space probe to study the planet Saturn and its system, including its rings and natural satellites.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Which happened first?

Timeline

  1. Cassini−Huygens (this page)October 15, 1997
  2. Mars Polar LanderJanuary 3, 1999
  3. Gravity Recovery and Climate ExperimentMarch 17, 2002
  4. THEMISFebruary 17, 2007
  5. Gravity Recovery and Interior LaboratorySeptember 10, 2011
  6. Van Allen ProbesAugust 30, 2012

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