• English: Basics of Space Flight Glossary. University of Illinois.
  

• English: Galileo Glossary. Project Galileo.
  

• English: Glossary of Solar Terrestrial Terms by The Australian Space Weather Agency.
  
• English: On-line Glossary of Solar-Terrestrial Terms. DOC/NOAA/ERL/SEL.
  
• English: On-Line Glossary of Solar-Terrestrial Terms. Space Environment Center.
  

• English: NASA Thesaurus at NASA.
  

• English: Spacetime Wrinkles Glossary. University of Illinois.
  

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