NASAView 1.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application is a product of NASA Goddard Institute for Space Studies. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. NASAView for Mac is included in Developer Tools.
From the developer:
NASAView is a PDS archive product display program that runs on multiple platforms in a GUI environment. This application was built using the Label Library Light (L3), Object Access Library (OAL) and the XVT Development Solution for C package. Label Library Light parses PDS ODL labels and creates an in-memory representation of the label information. The Object Access Library uses the parse tree and accesses the actual PDS object.
You may want to check out more Mac applications, such as JBuddy Bot Builder, Objective Basic or Epsilon, which might be similar to NASAView.