Speleology Speleology Speleology is the scientific study of caves and other karst features, their make-up, structure, physical properties, history, life forms, and the processes by which they form (speleogenesis) and change over time (speleomorphology). The term "speleology" is also sometimes applied to the recreational activity of exploring caves, but this is more properly known as "caving" or "potholing", or (not usually by participants) by the uncommon American term "spelunking". Speleology and caving are often connected, as the physical skills required for "in situ" study are the same. Speleology is a cross-disciplinary field that combines the knowledge of chemistry, biology, geology, physics,
Exploration of Neptune Exploration of Neptune The exploration of Neptune has only begun with one spacecraft, "Voyager 2" in 1989. Currently there are no approved future missions to visit the Neptunian system. NASA, ESA and also independent academic groups have proposed future scientific missions to visit Neptune. Some mission plans are still active, while others have been abandoned or put on hold. Neptune has also been scientifically studied from afar with telescopes, primarily since the mid 1990s. This includes the Hubble Space Telescope but most importantly ground-based telescopes using adaptive optics. After having visited Saturn successfully, it was decided to continue and fund