The Planetary Science Archive is the central repository for all scientific and engineering data returned by the European Space Agency's Solar System missions: such as Giotto, Huygens, Mars Express, Rosetta, SMART-1, and Venus Express, as well as several ground-based cometary observations. It uses NASA's Planetary Data System standards as a baseline for the formatting and structure of all data contained within the archive. The data sets are peer reviewed and undergo an additional internal validation procedure.[1]
All data on the Planetary Science Archive are free to download and use.[2] The principal investigator(s) as well as the European Space Agency Planetary Science Archive have to be acknowledged when making a publication using the downloaded data.[3]