| http://www.w3.org/ns/prov#value | - It needs to be focussed on long-term missions that are worth the months of travel needed and will bring back a wealth of data.From a scientific perspective, the past two decades of NASA have been a massively resounding success: Hubble, COBE, WMAP and other satellites have redefined cosmology; Voyager, Cassini, Spirit/Opportunity and Curiosity are still producing incredible data.
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